764131445 has 32 divisors (see below), whose sum is σ = 1161997056. Its totient is φ = 468518400.

The previous prime is 764131439. The next prime is 764131447. The reversal of 764131445 is 544131467.

It is not a de Polignac number, because 764131445 - 2⁴ = 764131429 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764131447) 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 31 ways as a sum of consecutive naturals, for example, 7217 + ... + 39753.

It is an arithmetic number, because the mean of its divisors is an integer number (36312408).

Almost surely, 2^764131445 is an apocalyptic number.

It is an amenable number.

764131445 is a deficient number, since it is larger than the sum of its proper divisors (397865611).

764131445 is a wasteful number, since it uses less digits than its factorization.

764131445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32621.

The product of its digits is 40320, while the sum is 35.

The square root of 764131445 is about 27642.9275765068. The cubic root of 764131445 is about 914.2311695918.

The spelling of 764131445 in words is "seven hundred sixty-four million, one hundred thirty-one thousand, four hundred forty-five".