64959138 has 32 divisors (see below), whose sum is σ = 151953600. Its totient is φ = 20513088.

The previous prime is 64959133. The next prime is 64959163. The reversal of 64959138 is 83195946.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 64959093 and 64959102.

It is not an unprimeable number, because it can be changed into a prime (64959133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30631 + ... + 32682.

It is an arithmetic number, because the mean of its divisors is an integer number (4748550).

Almost surely, 2^64959138 is an apocalyptic number.

64959138 is an abundant number, since it is smaller than the sum of its proper divisors (86994462).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64959138 is a wasteful number, since it uses less digits than its factorization.

64959138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63343 (or 63337 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 64959138 is about 8059.7231962394. The cubic root of 64959138 is about 401.9883044047.

The spelling of 64959138 in words is "sixty-four million, nine hundred fifty-nine thousand, one hundred thirty-eight".