64125923 has 4 divisors (see below), whose sum is σ = 64152000. Its totient is φ = 64099848.

The previous prime is 64125913. The next prime is 64125937. The reversal of 64125923 is 32952146.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 64125923 - 2¹⁰ = 64124899 is a prime.

It is a super-2 number, since 2×64125923² = 8224268001203858, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64125923.

It is not an unprimeable number, because it can be changed into a prime (64125913) by changing a digit.

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, 8915 + ... + 14412.

It is an arithmetic number, because the mean of its divisors is an integer number (16038000).

Almost surely, 2^64125923 is an apocalyptic number.

64125923 is a deficient number, since it is larger than the sum of its proper divisors (26077).

64125923 is a wasteful number, since it uses less digits than its factorization.

64125923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26076.

The product of its digits is 12960, while the sum is 32.

The square root of 64125923 is about 8007.8663200630. The cubic root of 64125923 is about 400.2621677160.

The spelling of 64125923 in words is "sixty-four million, one hundred twenty-five thousand, nine hundred twenty-three".