232143137 has 2 divisors, whose sum is σ = 232143138. Its totient is φ = 232143136.

The previous prime is 232143113. The next prime is 232143157. The reversal of 232143137 is 731341232.

232143137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 189227536 + 42915601 = 13756^2 + 6551^2 .

It is a cyclic number.

It is not a de Polignac number, because 232143137 - 2¹² = 232139041 is a prime.

It is not a weakly prime, because it can be changed into another prime (232143157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116071568 + 116071569.

It is an arithmetic number, because the mean of its divisors is an integer number (116071569).

Almost surely, 2^232143137 is an apocalyptic number.

It is an amenable number.

232143137 is a deficient number, since it is larger than the sum of its proper divisors (1).

232143137 is an equidigital number, since it uses as much as digits as its factorization.

232143137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 26.

The square root of 232143137 is about 15236.2441894320. The cubic root of 232143137 is about 614.5897076097.

Adding to 232143137 its reverse (731341232), we get a palindrome (963484369).

The spelling of 232143137 in words is "two hundred thirty-two million, one hundred forty-three thousand, one hundred thirty-seven".