232564621 has 2 divisors, whose sum is σ = 232564622. Its totient is φ = 232564620.

The previous prime is 232564609. The next prime is 232564637. The reversal of 232564621 is 126465232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154878025 + 77686596 = 12445^2 + 8814^2 .

It is a cyclic number.

It is not a de Polignac number, because 232564621 - 2¹¹ = 232562573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232568621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116282310 + 116282311.

It is an arithmetic number, because the mean of its divisors is an integer number (116282311).

Almost surely, 2^232564621 is an apocalyptic number.

It is an amenable number.

232564621 is a deficient number, since it is larger than the sum of its proper divisors (1).

232564621 is an equidigital number, since it uses as much as digits as its factorization.

232564621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 31.

The square root of 232564621 is about 15250.0695408251. The cubic root of 232564621 is about 614.9614367606.

The spelling of 232564621 in words is "two hundred thirty-two million, five hundred sixty-four thousand, six hundred twenty-one".