232407139 has 2 divisors, whose sum is σ = 232407140. Its totient is φ = 232407138.

The previous prime is 232407113. The next prime is 232407143. The reversal of 232407139 is 931704232.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 232407139 - 2¹¹ = 232405091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 232407139.

It is not a weakly prime, because it can be changed into another prime (232407739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116203569 + 116203570.

It is an arithmetic number, because the mean of its divisors is an integer number (116203570).

Almost surely, 2^232407139 is an apocalyptic number.

232407139 is a deficient number, since it is larger than the sum of its proper divisors (1).

232407139 is an equidigital number, since it uses as much as digits as its factorization.

232407139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 232407139 is about 15244.9053457212. The cubic root of 232407139 is about 614.8225976077.

The spelling of 232407139 in words is "two hundred thirty-two million, four hundred seven thousand, one hundred thirty-nine".