64242537 has 8 divisors (see below), whose sum is σ = 86063520. Its totient is φ = 42624960.

The previous prime is 64242533. The next prime is 64242587. The reversal of 64242537 is 73524246.

64242537 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 64242537 - 2² = 64242533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64242498 and 64242507.

It is not an unprimeable number, because it can be changed into a prime (64242533) 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 7 ways as a sum of consecutive naturals, for example, 50112 + ... + 51377.

It is an arithmetic number, because the mean of its divisors is an integer number (10757940).

Almost surely, 2^64242537 is an apocalyptic number.

It is an amenable number.

64242537 is a deficient number, since it is larger than the sum of its proper divisors (21820983).

64242537 is a wasteful number, since it uses less digits than its factorization.

64242537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101703.

The product of its digits is 40320, while the sum is 33.

The square root of 64242537 is about 8015.1442282719. The cubic root of 64242537 is about 400.5046484737.

The spelling of 64242537 in words is "sixty-four million, two hundred forty-two thousand, five hundred thirty-seven".