130556481 has 32 divisors (see below), whose sum is σ = 201916800. Its totient is φ = 74158080.

The previous prime is 130556449. The next prime is 130556497. The reversal of 130556481 is 184655031.

It is not a de Polignac number, because 130556481 - 2⁵ = 130556449 is a prime.

It is a super-2 number, since 2×130556481² = 34089989462206722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (130556411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 229165 + ... + 229733.

It is an arithmetic number, because the mean of its divisors is an integer number (6309900).

Almost surely, 2^130556481 is an apocalyptic number.

130556481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

130556481 is a deficient number, since it is larger than the sum of its proper divisors (71360319).

130556481 is a wasteful number, since it uses less digits than its factorization.

130556481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 130556481 is about 11426.1314975804. The cubic root of 130556481 is about 507.3014985620.

The spelling of 130556481 in words is "one hundred thirty million, five hundred fifty-six thousand, four hundred eighty-one".