764775131 has 16 divisors (see below), whose sum is σ = 787644000. Its totient is φ = 742368000.

The previous prime is 764775127. The next prime is 764775157. The reversal of 764775131 is 131577467.

It is a cyclic number.

It is not a de Polignac number, because 764775131 - 2² = 764775127 is a prime.

It is a super-2 number, since 2×764775131² = 1169762001992134322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (764775931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1339076 + ... + 1339646.

It is an arithmetic number, because the mean of its divisors is an integer number (49227750).

Almost surely, 2^764775131 is an apocalyptic number.

764775131 is a deficient number, since it is larger than the sum of its proper divisors (22868869).

764775131 is a wasteful number, since it uses less digits than its factorization.

764775131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910.

The product of its digits is 123480, while the sum is 41.

The square root of 764775131 is about 27654.5679951794. The cubic root of 764775131 is about 914.4878063462.

The spelling of 764775131 in words is "seven hundred sixty-four million, seven hundred seventy-five thousand, one hundred thirty-one".