232272721 has 2 divisors, whose sum is σ = 232272722. Its totient is φ = 232272720.

The previous prime is 232272709. The next prime is 232272757. The reversal of 232272721 is 127272232.

232272721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 212022721 + 20250000 = 14561^2 + 4500^2 .

It is a cyclic number.

It is not a de Polignac number, because 232272721 - 2²⁷ = 98054993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 232272721.

It is not a weakly prime, because it can be changed into another prime (232273721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116136360 + 116136361.

It is an arithmetic number, because the mean of its divisors is an integer number (116136361).

Almost surely, 2^232272721 is an apocalyptic number.

It is an amenable number.

232272721 is a deficient number, since it is larger than the sum of its proper divisors (1).

232272721 is an equidigital number, since it uses as much as digits as its factorization.

232272721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4704, while the sum is 28.

The square root of 232272721 is about 15240.4960877263. The cubic root of 232272721 is about 614.7040424975.

The spelling of 232272721 in words is "two hundred thirty-two million, two hundred seventy-two thousand, seven hundred twenty-one".