631154652 has 12 divisors (see below), whose sum is σ = 1472694216. Its totient is φ = 210384880.

The previous prime is 631154647. The next prime is 631154677. The reversal of 631154652 is 256451136.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×631154652² = 796712389482482208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26298099 + ... + 26298122.

It is an arithmetic number, because the mean of its divisors is an integer number (122724518).

Almost surely, 2^631154652 is an apocalyptic number.

It is an amenable number.

631154652 is an abundant number, since it is smaller than the sum of its proper divisors (841539564).

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

631154652 is a wasteful number, since it uses less digits than its factorization.

631154652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52596228 (or 52596226 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

The square root of 631154652 is about 25122.7914850241. The cubic root of 631154652 is about 857.7852930193.

The spelling of 631154652 in words is "six hundred thirty-one million, one hundred fifty-four thousand, six hundred fifty-two".