3131117 has 12 divisors (see below), whose sum is σ = 3487260. Its totient is φ = 2808960.

The previous prime is 3131113. The next prime is 3131123. The reversal of 3131117 is 7111313.

It can be written as a sum of positive squares in 2 ways, for example, as 1359556 + 1771561 = 1166^2 + 1331^2 .

It is not a de Polignac number, because 3131117 - 2² = 3131113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3131095 and 3131104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13559 + ... + 13787.

It is an arithmetic number, because the mean of its divisors is an integer number (290605).

Almost surely, 2^3131117 is an apocalyptic number.

It is an amenable number.

3131117 is a deficient number, since it is larger than the sum of its proper divisors (356143).

3131117 is a wasteful number, since it uses less digits than its factorization.

3131117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364 (or 353 counting only the distinct ones).

The product of its digits is 63, while the sum is 17.

The square root of 3131117 is about 1769.4962560006. The cubic root of 3131117 is about 146.2962178908.

The spelling of 3131117 in words is "three million, one hundred thirty-one thousand, one hundred seventeen".