3155239 has 2 divisors, whose sum is σ = 3155240. Its totient is φ = 3155238.

The previous prime is 3155221. The next prime is 3155263. The reversal of 3155239 is 9325513.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3155239 - 2¹¹ = 3153191 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3155839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1577619 + 1577620.

It is an arithmetic number, because the mean of its divisors is an integer number (1577620).

Almost surely, 2^3155239 is an apocalyptic number.

3155239 is a deficient number, since it is larger than the sum of its proper divisors (1).

3155239 is an equidigital number, since it uses as much as digits as its factorization.

3155239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4050, while the sum is 28.

The square root of 3155239 is about 1776.2992428079. The cubic root of 3155239 is about 146.6709439753.

The spelling of 3155239 in words is "three million, one hundred fifty-five thousand, two hundred thirty-nine".