130313621 has 4 divisors (see below), whose sum is σ = 133492044. Its totient is φ = 127135200.

The previous prime is 130313549. The next prime is 130313627. The reversal of 130313621 is 126313031.

It is a happy number.

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 7214596 + 123099025 = 2686^2 + 11095^2 .

It is a cyclic number.

It is not a de Polignac number, because 130313621 - 2¹⁸ = 130051477 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130313593 and 130313602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130313627) 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, 1589150 + ... + 1589231.

It is an arithmetic number, because the mean of its divisors is an integer number (33373011).

Almost surely, 2^130313621 is an apocalyptic number.

It is an amenable number.

130313621 is a deficient number, since it is larger than the sum of its proper divisors (3178423).

130313621 is an equidigital number, since it uses as much as digits as its factorization.

130313621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3178422.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 130313621 is about 11415.4991568481. The cubic root of 130313621 is about 506.9867440744.

Adding to 130313621 its reverse (126313031), we get a palindrome (256626652).

The spelling of 130313621 in words is "one hundred thirty million, three hundred thirteen thousand, six hundred twenty-one".