64155115 has 12 divisors (see below), whose sum is σ = 81253584. Its totient is φ = 48621456.

The previous prime is 64155109. The next prime is 64155131. The reversal of 64155115 is 51155146.

It is a happy number.

It is not a de Polignac number, because 64155115 - 2³ = 64155107 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15967 + ... + 19576.

It is an arithmetic number, because the mean of its divisors is an integer number (6771132).

Almost surely, 2^64155115 is an apocalyptic number.

64155115 is a deficient number, since it is larger than the sum of its proper divisors (17098469).

64155115 is a wasteful number, since it uses less digits than its factorization.

64155115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35586 (or 35567 counting only the distinct ones).

The product of its digits is 3000, while the sum is 28.

The square root of 64155115 is about 8009.6888204224. The cubic root of 64155115 is about 400.3228955261.

The spelling of 64155115 in words is "sixty-four million, one hundred fifty-five thousand, one hundred fifteen".