130621086 has 40 divisors (see below), whose sum is σ = 308099880. Its totient is φ = 41247792.

The previous prime is 130621079. The next prime is 130621087. The reversal of 130621086 is 680126031.

130621086 is a `hidden beast` number, since 1 + 30 + 621 + 0 + 8 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130621087) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 18141 + ... + 24296.

It is an arithmetic number, because the mean of its divisors is an integer number (7702497).

Almost surely, 2^130621086 is an apocalyptic number.

130621086 is an abundant number, since it is smaller than the sum of its proper divisors (177478794).

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

130621086 is a wasteful number, since it uses less digits than its factorization.

130621086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42470 (or 42461 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 130621086 is about 11428.9582202404. The cubic root of 130621086 is about 507.3851630126.

The spelling of 130621086 in words is "one hundred thirty million, six hundred twenty-one thousand, eighty-six".