130331581 has 8 divisors (see below), whose sum is σ = 133780064. Its totient is φ = 126902160.

The previous prime is 130331569. The next prime is 130331603. The reversal of 130331581 is 185133031.

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

It is a cyclic number.

It is not a de Polignac number, because 130331581 - 2¹¹ = 130329533 is a prime.

It is a super-2 number, since 2×130331581² = 33972642011919122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130331561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9655 + ... + 18811.

It is an arithmetic number, because the mean of its divisors is an integer number (16722508).

Almost surely, 2^130331581 is an apocalyptic number.

It is an amenable number.

130331581 is a deficient number, since it is larger than the sum of its proper divisors (3448483).

130331581 is an equidigital number, since it uses as much as digits as its factorization.

130331581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9531.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 130331581 is about 11416.2857795344. The cubic root of 130331581 is about 507.0100342047.

The spelling of 130331581 in words is "one hundred thirty million, three hundred thirty-one thousand, five hundred eighty-one".