64152685 has 4 divisors (see below), whose sum is σ = 76983228. Its totient is φ = 51322144.

The previous prime is 64152667. The next prime is 64152691. The reversal of 64152685 is 58625146.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14280841 + 49871844 = 3779^2 + 7062^2 .

It is a cyclic number.

It is not a de Polignac number, because 64152685 - 2¹⁵ = 64119917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6415264 + ... + 6415273.

It is an arithmetic number, because the mean of its divisors is an integer number (19245807).

Almost surely, 2^64152685 is an apocalyptic number.

It is an amenable number.

64152685 is a deficient number, since it is larger than the sum of its proper divisors (12830543).

64152685 is a wasteful number, since it uses less digits than its factorization.

64152685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12830542.

The product of its digits is 57600, while the sum is 37.

The square root of 64152685 is about 8009.5371276997. The cubic root of 64152685 is about 400.3178411257.

The spelling of 64152685 in words is "sixty-four million, one hundred fifty-two thousand, six hundred eighty-five".