130990920 has 32 divisors (see below), whose sum is σ = 392973120. Its totient is φ = 34930880.

The previous prime is 130990919. The next prime is 130990991. The reversal of 130990920 is 29099031.

It is a super-2 number, since 2×130990920² = 34317242244892800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 545676 + ... + 545915.

It is an arithmetic number, because the mean of its divisors is an integer number (12280410).

Almost surely, 2^130990920 is an apocalyptic number.

130990920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130990920 is an abundant number, since it is smaller than the sum of its proper divisors (261982200).

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

130990920 is a wasteful number, since it uses less digits than its factorization.

130990920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091605 (or 1091601 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 33.

The square root of 130990920 is about 11445.1264737442. The cubic root of 130990920 is about 507.8635734256.

It can be divided in two parts, 1309 and 90920, that added together give a palindrome (92229).

The spelling of 130990920 in words is "one hundred thirty million, nine hundred ninety thousand, nine hundred twenty".