130979520 has 336 divisors, whose sum is σ = 527791680. Its totient is φ = 29196288.

The previous prime is 130979507. The next prime is 130979531. The reversal of 130979520 is 25979031.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1471636 + ... + 1471724.

Almost surely, 2^130979520 is an apocalyptic number.

130979520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130979520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263895840).

130979520 is an abundant number, since it is smaller than the sum of its proper divisors (396812160).

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

130979520 is a wasteful number, since it uses less digits than its factorization.

130979520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192 (or 179 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 36.

The square root of 130979520 is about 11444.6284343355. The cubic root of 130979520 is about 507.8488400566.

The spelling of 130979520 in words is "one hundred thirty million, nine hundred seventy-nine thousand, five hundred twenty".