765463137 has 4 divisors (see below), whose sum is σ = 1020617520. Its totient is φ = 510308756.

The previous prime is 765463133. The next prime is 765463151. The reversal of 765463137 is 731364567.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 731364567 = 3 ⋅243788189.

It is a cyclic number.

It is not a de Polignac number, because 765463137 - 2² = 765463133 is a prime.

It is not an unprimeable number, because it can be changed into a prime (765463133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127577187 + ... + 127577192.

It is an arithmetic number, because the mean of its divisors is an integer number (255154380).

Almost surely, 2^765463137 is an apocalyptic number.

It is an amenable number.

765463137 is a deficient number, since it is larger than the sum of its proper divisors (255154383).

765463137 is a wasteful number, since it uses less digits than its factorization.

765463137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255154382.

The product of its digits is 317520, while the sum is 42.

The square root of 765463137 is about 27667.0044818733. The cubic root of 765463137 is about 914.7619542600.

The spelling of 765463137 in words is "seven hundred sixty-five million, four hundred sixty-three thousand, one hundred thirty-seven".