130156621 has 4 divisors (see below), whose sum is σ = 148750432. Its totient is φ = 111562812.

The previous prime is 130156601. The next prime is 130156633. The reversal of 130156621 is 126651031.

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 130156621 - 2¹³ = 130148429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130156601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9296895 + ... + 9296908.

It is an arithmetic number, because the mean of its divisors is an integer number (37187608).

Almost surely, 2^130156621 is an apocalyptic number.

It is an amenable number.

130156621 is a deficient number, since it is larger than the sum of its proper divisors (18593811).

130156621 is an equidigital number, since it uses as much as digits as its factorization.

130156621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18593810.

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

The square root of 130156621 is about 11408.6204687508. The cubic root of 130156621 is about 506.7830587769.

The spelling of 130156621 in words is "one hundred thirty million, one hundred fifty-six thousand, six hundred twenty-one".