130365581 has 4 divisors (see below), whose sum is σ = 130594464. Its totient is φ = 130136700.

The previous prime is 130365569. The next prime is 130365583. The reversal of 130365581 is 185563031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 130365581 - 2¹⁰ = 130364557 is a prime.

It is a super-2 number, since 2×130365581² = 33990369418935122, 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 (130365583) 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, 113585 + ... + 114726.

It is an arithmetic number, because the mean of its divisors is an integer number (32648616).

Almost surely, 2^130365581 is an apocalyptic number.

It is an amenable number.

130365581 is a deficient number, since it is larger than the sum of its proper divisors (228883).

130365581 is an equidigital number, since it uses as much as digits as its factorization.

130365581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228882.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 130365581 is about 11417.7747832054. The cubic root of 130365581 is about 507.0541187933.

The spelling of 130365581 in words is "one hundred thirty million, three hundred sixty-five thousand, five hundred eighty-one".