631045507 has 16 divisors (see below), whose sum is σ = 655695648. Its totient is φ = 606977280.

The previous prime is 631045501. The next prime is 631045543. The reversal of 631045507 is 705540136.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-631045507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (631045501) 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 15 ways as a sum of consecutive naturals, for example, 815973 + ... + 816745.

It is an arithmetic number, because the mean of its divisors is an integer number (40980978).

Almost surely, 2^631045507 is an apocalyptic number.

631045507 is a deficient number, since it is larger than the sum of its proper divisors (24650141).

631045507 is a wasteful number, since it uses less digits than its factorization.

631045507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 631045507 is about 25120.6191603631. The cubic root of 631045507 is about 857.7358448253.

The spelling of 631045507 in words is "six hundred thirty-one million, forty-five thousand, five hundred seven".