3170981 has 16 divisors (see below), whose sum is σ = 3628800. Its totient is φ = 2745600.

The previous prime is 3170969. The next prime is 3170983. The reversal of 3170981 is 1890713.

3170981 = 143² + 144² + ... + 231².

It is not a de Polignac number, because 3170981 - 2¹⁴ = 3154597 is a prime.

It is a super-2 number, since 2×3170981² = 20110241004722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3170983) 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, 35585 + ... + 35673.

It is an arithmetic number, because the mean of its divisors is an integer number (226800).

Almost surely, 2^3170981 is an apocalyptic number.

It is an amenable number.

3170981 is a deficient number, since it is larger than the sum of its proper divisors (457819).

3170981 is a wasteful number, since it uses less digits than its factorization.

3170981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 3170981 is about 1780.7248524126. The cubic root of 3170981 is about 146.9144611640.

The spelling of 3170981 in words is "three million, one hundred seventy thousand, nine hundred eighty-one".