64360129 has 4 divisors (see below), whose sum is σ = 64997460. Its totient is φ = 63722800.

The previous prime is 64360117. The next prime is 64360139. The reversal of 64360129 is 92106346.

64360129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92106346 = 2 ⋅46053173.

It can be written as a sum of positive squares in 2 ways, for example, as 48678529 + 15681600 = 6977^2 + 3960^2 .

It is a cyclic number.

It is not a de Polignac number, because 64360129 - 2²³ = 55971521 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 64360129.

It is not an unprimeable number, because it can be changed into a prime (64360139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318514 + ... + 318715.

It is an arithmetic number, because the mean of its divisors is an integer number (16249365).

Almost surely, 2^64360129 is an apocalyptic number.

It is an amenable number.

64360129 is a deficient number, since it is larger than the sum of its proper divisors (637331).

64360129 is a wasteful number, since it uses less digits than its factorization.

64360129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637330.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 64360129 is about 8022.4764879680. The cubic root of 64360129 is about 400.7488658748.

The spelling of 64360129 in words is "sixty-four million, three hundred sixty thousand, one hundred twenty-nine".