63130920 has 64 divisors (see below), whose sum is σ = 199368000. Its totient is φ = 15948288.

The previous prime is 63130909. The next prime is 63130931. The reversal of 63130920 is 2903136.

It is an interprime number because it is at equal distance from previous prime (63130909) and next prime (63130931).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11565 + ... + 16124.

It is an arithmetic number, because the mean of its divisors is an integer number (3115125).

Almost surely, 2^63130920 is an apocalyptic number.

63130920 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63130920 is an abundant number, since it is smaller than the sum of its proper divisors (136237080).

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

63130920 is a wasteful number, since it uses less digits than its factorization.

63130920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27722 (or 27718 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 63130920 is about 7945.4968378321. The cubic root of 63130920 is about 398.1811587434.

The spelling of 63130920 in words is "sixty-three million, one hundred thirty thousand, nine hundred twenty".