130621379 has 4 divisors (see below), whose sum is σ = 149281584. Its totient is φ = 111961176.

The previous prime is 130621373. The next prime is 130621397. The reversal of 130621379 is 973126031.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 973126031 = 4813 ⋅202187.

It is a cyclic number.

It is not a de Polignac number, because 130621379 - 2⁴ = 130621363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130621373) 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, 9330092 + ... + 9330105.

It is an arithmetic number, because the mean of its divisors is an integer number (37320396).

Almost surely, 2^130621379 is an apocalyptic number.

130621379 is a deficient number, since it is larger than the sum of its proper divisors (18660205).

130621379 is an equidigital number, since it uses as much as digits as its factorization.

130621379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18660204.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 130621379 is about 11428.9710385494. The cubic root of 130621379 is about 507.3855423892.

It can be divided in two parts, 13062 and 1379, that added together give a palindrome (14441).

The spelling of 130621379 in words is "one hundred thirty million, six hundred twenty-one thousand, three hundred seventy-nine".