64536745 has 64 divisors (see below), whose sum is σ = 101445120. Its totient is φ = 38320128.

The previous prime is 64536739. The next prime is 64536751. The reversal of 64536745 is 54763546.

64536745 = 183² + 184² + ... + 584².

It is an interprime number because it is at equal distance from previous prime (64536739) and next prime (64536751).

It is not a de Polignac number, because 64536745 - 2⁵ = 64536713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64536698 and 64536707.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 884029 + ... + 884101.

It is an arithmetic number, because the mean of its divisors is an integer number (1585080).

Almost surely, 2^64536745 is an apocalyptic number.

64536745 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

64536745 is a deficient number, since it is larger than the sum of its proper divisors (36908375).

64536745 is a wasteful number, since it uses less digits than its factorization.

64536745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194.

The product of its digits is 302400, while the sum is 40.

The square root of 64536745 is about 8033.4765201624. The cubic root of 64536745 is about 401.1151072011.

The spelling of 64536745 in words is "sixty-four million, five hundred thirty-six thousand, seven hundred forty-five".