131430081 has 8 divisors (see below), whose sum is σ = 177855904. Its totient is φ = 86312160.

The previous prime is 131430041. The next prime is 131430083. The reversal of 131430081 is 180034131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131430081 - 2⁷ = 131429953 is a prime.

It is a super-2 number, since 2×131430081² = 34547732383333122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131430083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 326740 + ... + 327141.

It is an arithmetic number, because the mean of its divisors is an integer number (22231988).

Almost surely, 2^131430081 is an apocalyptic number.

It is an amenable number.

131430081 is a deficient number, since it is larger than the sum of its proper divisors (46425823).

131430081 is an equidigital number, since it uses as much as digits as its factorization.

131430081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653951.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 131430081 is about 11464.2959225589. The cubic root of 131430081 is about 508.4304959006.

The spelling of 131430081 in words is "one hundred thirty-one million, four hundred thirty thousand, eighty-one".