631464501 has 4 divisors (see below), whose sum is σ = 841952672. Its totient is φ = 420976332.

The previous prime is 631464479. The next prime is 631464511. The reversal of 631464501 is 105464136.

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.

It is not a de Polignac number, because 631464501 - 2⁶ = 631464437 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 (631464511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105244081 + ... + 105244086.

It is an arithmetic number, because the mean of its divisors is an integer number (210488168).

Almost surely, 2^631464501 is an apocalyptic number.

It is an amenable number.

631464501 is a deficient number, since it is larger than the sum of its proper divisors (210488171).

631464501 is a wasteful number, since it uses less digits than its factorization.

631464501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210488170.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 631464501 is about 25128.9574196782. The cubic root of 631464501 is about 857.9256391997.

The spelling of 631464501 in words is "six hundred thirty-one million, four hundred sixty-four thousand, five hundred one".