3158961 has 16 divisors (see below), whose sum is σ = 4584384. Its totient is φ = 1923264.

The previous prime is 3158951. The next prime is 3158963. The reversal of 3158961 is 1698513.

It is not a de Polignac number, because 3158961 - 2¹³ = 3150769 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3158963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3795 + ... + 4551.

It is an arithmetic number, because the mean of its divisors is an integer number (286524).

Almost surely, 2^3158961 is an apocalyptic number.

It is an amenable number.

3158961 is a deficient number, since it is larger than the sum of its proper divisors (1425423).

3158961 is a wasteful number, since it uses less digits than its factorization.

3158961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880.

The product of its digits is 6480, while the sum is 33.

The square root of 3158961 is about 1777.3466178548. The cubic root of 3158961 is about 146.7285935689.

The spelling of 3158961 in words is "three million, one hundred fifty-eight thousand, nine hundred sixty-one".