3155939 has 2 divisors, whose sum is σ = 3155940. Its totient is φ = 3155938.

The previous prime is 3155923. The next prime is 3155959. The reversal of 3155939 is 9395513.

3155939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (9395513) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3155939 - 2⁴ = 3155923 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3155899 and 3155908.

It is not a weakly prime, because it can be changed into another prime (3155959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1577969 + 1577970.

It is an arithmetic number, because the mean of its divisors is an integer number (1577970).

Almost surely, 2^3155939 is an apocalyptic number.

3155939 is a deficient number, since it is larger than the sum of its proper divisors (1).

3155939 is an equidigital number, since it uses as much as digits as its factorization.

3155939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18225, while the sum is 35.

The square root of 3155939 is about 1776.4962707532. The cubic root of 3155939 is about 146.6817896481.

The spelling of 3155939 in words is "three million, one hundred fifty-five thousand, nine hundred thirty-nine".