64113765 has 32 divisors (see below), whose sum is σ = 108380160. Its totient is φ = 32298816.

The previous prime is 64113761. The next prime is 64113769. The reversal of 64113765 is 56731146.

64113765 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (64113761) and next prime (64113769).

It is not a de Polignac number, because 64113765 - 2² = 64113761 is a prime.

It is a super-2 number, since 2×64113765² = 8221149724950450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64113761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27516 + ... + 29754.

It is an arithmetic number, because the mean of its divisors is an integer number (3386880).

Almost surely, 2^64113765 is an apocalyptic number.

It is an amenable number.

64113765 is a deficient number, since it is larger than the sum of its proper divisors (44266395).

64113765 is a wasteful number, since it uses less digits than its factorization.

64113765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2353.

The product of its digits is 15120, while the sum is 33.

The square root of 64113765 is about 8007.1071555213. The cubic root of 64113765 is about 400.2368701203.

The spelling of 64113765 in words is "sixty-four million, one hundred thirteen thousand, seven hundred sixty-five".