631222975 has 6 divisors (see below), whose sum is σ = 782716520. Its totient is φ = 504978360.

The previous prime is 631222973. The next prime is 631222981. The reversal of 631222975 is 579222136.

It is not a de Polignac number, because 631222975 - 2¹ = 631222973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631222973) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12624435 + ... + 12624484.

Almost surely, 2^631222975 is an apocalyptic number.

631222975 is a deficient number, since it is larger than the sum of its proper divisors (151493545).

631222975 is a wasteful number, since it uses less digits than its factorization.

631222975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25248929 (or 25248924 counting only the distinct ones).

The product of its digits is 45360, while the sum is 37.

The square root of 631222975 is about 25124.1512294445. The cubic root of 631222975 is about 857.8162438857.

The spelling of 631222975 in words is "six hundred thirty-one million, two hundred twenty-two thousand, nine hundred seventy-five".