130103581 has 4 divisors (see below), whose sum is σ = 133619932. Its totient is φ = 126587232.

The previous prime is 130103573. The next prime is 130103629. The reversal of 130103581 is 185301031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 58277956 + 71825625 = 7634^2 + 8475^2 .

It is a cyclic number.

It is not a de Polignac number, because 130103581 - 2³ = 130103573 is a prime.

It is a super-2 number, since 2×130103581² = 33853883578047122, 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 (130103531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1758120 + ... + 1758193.

It is an arithmetic number, because the mean of its divisors is an integer number (33404983).

Almost surely, 2^130103581 is an apocalyptic number.

It is an amenable number.

130103581 is a deficient number, since it is larger than the sum of its proper divisors (3516351).

130103581 is an equidigital number, since it uses as much as digits as its factorization.

130103581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3516350.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 130103581 is about 11406.2956738812. The cubic root of 130103581 is about 506.7142098642.

The spelling of 130103581 in words is "one hundred thirty million, one hundred three thousand, five hundred eighty-one".