631123373 has 4 divisors (see below), whose sum is σ = 646516668. Its totient is φ = 615730080.

The previous prime is 631123357. The next prime is 631123387. The reversal of 631123373 is 373321136.

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

It can be written as a sum of positive squares in 2 ways, for example, as 242954569 + 388168804 = 15587^2 + 19702^2 .

It is a cyclic number.

It is not a de Polignac number, because 631123373 - 2⁴ = 631123357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631128373) 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 3 ways as a sum of consecutive naturals, for example, 7696586 + ... + 7696667.

It is an arithmetic number, because the mean of its divisors is an integer number (161629167).

Almost surely, 2^631123373 is an apocalyptic number.

It is an amenable number.

631123373 is a deficient number, since it is larger than the sum of its proper divisors (15393295).

631123373 is a wasteful number, since it uses less digits than its factorization.

631123373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15393294.

The product of its digits is 6804, while the sum is 29.

The square root of 631123373 is about 25122.1689549290. The cubic root of 631123373 is about 857.7711226363.

The spelling of 631123373 in words is "six hundred thirty-one million, one hundred twenty-three thousand, three hundred seventy-three".