3155923 has 2 divisors, whose sum is σ = 3155924. Its totient is φ = 3155922.

The previous prime is 3155839. The next prime is 3155939. The reversal of 3155923 is 3295513.

3155923 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3155923 is a prime.

3155923 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3155891 and 3155900.

It is not a weakly prime, because it can be changed into another prime (3155963) 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, 1577961 + 1577962.

It is an arithmetic number, because the mean of its divisors is an integer number (1577962).

Almost surely, 2^3155923 is an apocalyptic number.

3155923 is a deficient number, since it is larger than the sum of its proper divisors (1).

3155923 is an equidigital number, since it uses as much as digits as its factorization.

3155923 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 3155923 is about 1776.4917675013. The cubic root of 3155923 is about 146.6815417649.

The spelling of 3155923 in words is "three million, one hundred fifty-five thousand, nine hundred twenty-three".