625764134 has 4 divisors (see below), whose sum is σ = 938646204. Its totient is φ = 312882066.

The previous prime is 625764127. The next prime is 625764137. The reversal of 625764134 is 431467526.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625764137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156441032 + ... + 156441035.

It is an arithmetic number, because the mean of its divisors is an integer number (234661551).

Almost surely, 2^625764134 is an apocalyptic number.

625764134 is a deficient number, since it is larger than the sum of its proper divisors (312882070).

625764134 is a wasteful number, since it uses less digits than its factorization.

625764134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312882069.

The product of its digits is 120960, while the sum is 38.

The square root of 625764134 is about 25015.2780116472. The cubic root of 625764134 is about 855.3362716347.

The spelling of 625764134 in words is "six hundred twenty-five million, seven hundred sixty-four thousand, one hundred thirty-four".