631148607 has 12 divisors (see below), whose sum is σ = 924500304. Its totient is φ = 414839040.

The previous prime is 631148603. The next prime is 631148621. The reversal of 631148607 is 706841136.

631148607 is a `hidden beast` number, since 6 + 3 + 1 + 1 + 48 + 607 = 666.

It is not a de Polignac number, because 631148607 - 2² = 631148603 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631148603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 493218 + ... + 494495.

It is an arithmetic number, because the mean of its divisors is an integer number (77041692).

Almost surely, 2^631148607 is an apocalyptic number.

631148607 is a deficient number, since it is larger than the sum of its proper divisors (293351697).

631148607 is a wasteful number, since it uses less digits than its factorization.

631148607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987790 (or 987787 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 631148607 is about 25122.6711756533. The cubic root of 631148607 is about 857.7825544783.

The spelling of 631148607 in words is "six hundred thirty-one million, one hundred forty-eight thousand, six hundred seven".