64115158 has 16 divisors (see below), whose sum is σ = 101669040. Its totient is φ = 30240000.

The previous prime is 64115153. The next prime is 64115159. The reversal of 64115158 is 85151146.

It is a super-2 number, since 2×64115158² = 8221506970729928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64115153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5658 + ... + 12658.

It is an arithmetic number, because the mean of its divisors is an integer number (6354315).

Almost surely, 2^64115158 is an apocalyptic number.

64115158 is a deficient number, since it is larger than the sum of its proper divisors (37553882).

64115158 is a wasteful number, since it uses less digits than its factorization.

64115158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7263.

The product of its digits is 4800, while the sum is 31.

The square root of 64115158 is about 8007.1941402716. The cubic root of 64115158 is about 400.2397687487.

The spelling of 64115158 in words is "sixty-four million, one hundred fifteen thousand, one hundred fifty-eight".