165112439 has 2 divisors, whose sum is σ = 165112440. Its totient is φ = 165112438.

The previous prime is 165112429. The next prime is 165112447. The reversal of 165112439 is 934211561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 165112439 - 2⁸ = 165112183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165112429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82556219 + 82556220.

It is an arithmetic number, because the mean of its divisors is an integer number (82556220).

Almost surely, 2^165112439 is an apocalyptic number.

165112439 is a deficient number, since it is larger than the sum of its proper divisors (1).

165112439 is an equidigital number, since it uses as much as digits as its factorization.

165112439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 32.

The square root of 165112439 is about 12849.6085154373. The cubic root of 165112439 is about 548.6052140579.

The spelling of 165112439 in words is "one hundred sixty-five million, one hundred twelve thousand, four hundred thirty-nine".