3161961 has 36 divisors (see below), whose sum is σ = 5375760. Its totient is φ = 1771200.

The previous prime is 3161953. The next prime is 3161993. The reversal of 3161961 is 1691613.

It is not a de Polignac number, because 3161961 - 2³ = 3161953 is a prime.

It is a Curzon number.

3161961 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3161461) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 77101 + ... + 77141.

Almost surely, 2^3161961 is an apocalyptic number.

It is an amenable number.

3161961 is a deficient number, since it is larger than the sum of its proper divisors (2213799).

3161961 is a wasteful number, since it uses less digits than its factorization.

3161961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118 (or 74 counting only the distinct ones).

The product of its digits is 972, while the sum is 27.

The square root of 3161961 is about 1778.1903722605. The cubic root of 3161961 is about 146.7750272443.

The spelling of 3161961 in words is "three million, one hundred sixty-one thousand, nine hundred sixty-one".