64520102 has 8 divisors (see below), whose sum is σ = 96895656. Its totient is φ = 32221552.

The previous prime is 64520069. The next prime is 64520123. The reversal of 64520102 is 20102546.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17108 + ... + 20535.

It is an arithmetic number, because the mean of its divisors is an integer number (12111957).

Almost surely, 2^64520102 is an apocalyptic number.

64520102 is a deficient number, since it is larger than the sum of its proper divisors (32375554).

64520102 is a wasteful number, since it uses less digits than its factorization.

64520102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38502.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 64520102 is about 8032.4406004651. The cubic root of 64520102 is about 401.0806238347.

Adding to 64520102 its reverse (20102546), we get a palindrome (84622648).

The spelling of 64520102 in words is "sixty-four million, five hundred twenty thousand, one hundred two".