232312261 has 2 divisors, whose sum is σ = 232312262. Its totient is φ = 232312260.

The previous prime is 232312253. The next prime is 232312271. The reversal of 232312261 is 162213232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 219928900 + 12383361 = 14830^2 + 3519^2 .

It is a cyclic number.

It is not a de Polignac number, because 232312261 - 2³ = 232312253 is a prime.

It is a super-2 number, since 2×232312261² = 107937973221864242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232312271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116156130 + 116156131.

It is an arithmetic number, because the mean of its divisors is an integer number (116156131).

Almost surely, 2^232312261 is an apocalyptic number.

It is an amenable number.

232312261 is a deficient number, since it is larger than the sum of its proper divisors (1).

232312261 is an equidigital number, since it uses as much as digits as its factorization.

232312261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 22.

The square root of 232312261 is about 15241.7932343934. The cubic root of 232312261 is about 614.7389210642.

Adding to 232312261 its reverse (162213232), we get a palindrome (394525493).

The spelling of 232312261 in words is "two hundred thirty-two million, three hundred twelve thousand, two hundred sixty-one".