232989139 has 2 divisors, whose sum is σ = 232989140. Its totient is φ = 232989138.

The previous prime is 232989047. The next prime is 232989203. The reversal of 232989139 is 931989232.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 232989139 - 2⁹ = 232988627 is a prime.

It is a super-2 number, since 2×232989139² = 108567877783922642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (232989739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116494569 + 116494570.

It is an arithmetic number, because the mean of its divisors is an integer number (116494570).

Almost surely, 2^232989139 is an apocalyptic number.

232989139 is a deficient number, since it is larger than the sum of its proper divisors (1).

232989139 is an equidigital number, since it uses as much as digits as its factorization.

232989139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 209952, while the sum is 46.

The square root of 232989139 is about 15263.9817544440. The cubic root of 232989139 is about 615.3353880426.

The spelling of 232989139 in words is "two hundred thirty-two million, nine hundred eighty-nine thousand, one hundred thirty-nine".