864132751 has 4 divisors (see below), whose sum is σ = 869127912. Its totient is φ = 859137592.

The previous prime is 864132739. The next prime is 864132757. The reversal of 864132751 is 157231468.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 864132751 - 2⁷ = 864132623 is a prime.

It is a super-2 number, since 2×864132751² = 1493450822701656002, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 864132751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864132757) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2497321 + ... + 2497666.

It is an arithmetic number, because the mean of its divisors is an integer number (217281978).

Almost surely, 2^864132751 is an apocalyptic number.

864132751 is a deficient number, since it is larger than the sum of its proper divisors (4995161).

864132751 is a wasteful number, since it uses less digits than its factorization.

864132751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4995160.

The product of its digits is 40320, while the sum is 37.

The square root of 864132751 is about 29396.1349670327. The cubic root of 864132751 is about 952.4894085618.

The spelling of 864132751 in words is "eight hundred sixty-four million, one hundred thirty-two thousand, seven hundred fifty-one".