631452465 has 72 divisors (see below), whose sum is σ = 1328678208. Its totient is φ = 276091200.

The previous prime is 631452461. The next prime is 631452469. The reversal of 631452465 is 564254136.

631452465 is a `hidden beast` number, since 63 + 14 + 524 + 65 = 666.

It is an interprime number because it is at equal distance from previous prime (631452461) and next prime (631452469).

It is not a de Polignac number, because 631452465 - 2² = 631452461 is a prime.

It is not an unprimeable number, because it can be changed into a prime (631452461) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 44490 + ... + 56940.

It is an arithmetic number, because the mean of its divisors is an integer number (18453864).

Almost surely, 2^631452465 is an apocalyptic number.

It is an amenable number.

631452465 is an abundant number, since it is smaller than the sum of its proper divisors (697225743).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

631452465 is a wasteful number, since it uses less digits than its factorization.

631452465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12499 (or 12489 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 631452465 is about 25128.7179338700. The cubic root of 631452465 is about 857.9201883477.

The spelling of 631452465 in words is "six hundred thirty-one million, four hundred fifty-two thousand, four hundred sixty-five".