232613621 has 2 divisors, whose sum is σ = 232613622. Its totient is φ = 232613620.

The previous prime is 232613597. The next prime is 232613627. The reversal of 232613621 is 126316232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 207763396 + 24850225 = 14414^2 + 4985^2 .

It is a cyclic number.

It is not a de Polignac number, because 232613621 - 2¹⁸ = 232351477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232613627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116306810 + 116306811.

It is an arithmetic number, because the mean of its divisors is an integer number (116306811).

Almost surely, 2^232613621 is an apocalyptic number.

It is an amenable number.

232613621 is a deficient number, since it is larger than the sum of its proper divisors (1).

232613621 is an equidigital number, since it uses as much as digits as its factorization.

232613621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 26.

The square root of 232613621 is about 15251.6760062624. The cubic root of 232613621 is about 615.0046233155.

Adding to 232613621 its reverse (126316232), we get a palindrome (358929853).

The spelling of 232613621 in words is "two hundred thirty-two million, six hundred thirteen thousand, six hundred twenty-one".