3156961 has 4 divisors (see below), whose sum is σ = 3167424. Its totient is φ = 3146500.

The previous prime is 3156949. The next prime is 3156971. The reversal of 3156961 is 1696513.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3156961 - 2⁵ = 3156929 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3156941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4765 + ... + 5386.

It is an arithmetic number, because the mean of its divisors is an integer number (791856).

Almost surely, 2^3156961 is an apocalyptic number.

It is an amenable number.

3156961 is a deficient number, since it is larger than the sum of its proper divisors (10463).

3156961 is a wasteful number, since it uses less digits than its factorization.

3156961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10462.

The product of its digits is 4860, while the sum is 31.

The square root of 3156961 is about 1776.7838923178. The cubic root of 3156961 is about 146.6976214508.

The spelling of 3156961 in words is "three million, one hundred fifty-six thousand, nine hundred sixty-one".