631359147 has 18 divisors (see below), whose sum is σ = 856632252. Its totient is φ = 413623584.

The previous prime is 631359121. The next prime is 631359149. The reversal of 631359147 is 741953136.

631359147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 631359147 - 2²² = 627164843 is a prime.

It is a super-2 number, since 2×631359147² = 797228745001135218, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (631359149) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3873288 + ... + 3873450.

Almost surely, 2^631359147 is an apocalyptic number.

631359147 is a deficient number, since it is larger than the sum of its proper divisors (225273105).

631359147 is an frugal number, since it uses more digits than its factorization.

631359147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507 (or 255 counting only the distinct ones).

The product of its digits is 68040, while the sum is 39.

The square root of 631359147 is about 25126.8610654017. The cubic root of 631359147 is about 857.8779242319.

The spelling of 631359147 in words is "six hundred thirty-one million, three hundred fifty-nine thousand, one hundred forty-seven".