3155913 has 6 divisors (see below), whose sum is σ = 4558554. Its totient is φ = 2103936.

The previous prime is 3155839. The next prime is 3155923. The reversal of 3155913 is 3195513.

It can be written as a sum of positive squares in only one way, i.e., 2913849 + 242064 = 1707^2 + 492^2 .

It is not a de Polignac number, because 3155913 - 2¹⁰ = 3154889 is a prime.

3155913 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3155923) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 175320 + ... + 175337.

It is an arithmetic number, because the mean of its divisors is an integer number (759759).

Almost surely, 2^3155913 is an apocalyptic number.

It is an amenable number.

3155913 is a deficient number, since it is larger than the sum of its proper divisors (1402641).

3155913 is a wasteful number, since it uses less digits than its factorization.

3155913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350663 (or 350660 counting only the distinct ones).

The product of its digits is 2025, while the sum is 27.

The square root of 3155913 is about 1776.4889529631. The cubic root of 3155913 is about 146.6813868375.

The spelling of 3155913 in words is "three million, one hundred fifty-five thousand, nine hundred thirteen".