3133881 has 6 divisors (see below), whose sum is σ = 4526730. Its totient is φ = 2089248.

The previous prime is 3133873. The next prime is 3133891. The reversal of 3133881 is 1883313.

It can be written as a sum of positive squares in only one way, i.e., 2944656 + 189225 = 1716^2 + 435^2 .

It is not a de Polignac number, because 3133881 - 2³ = 3133873 is a prime.

It is a super-2 number, since 2×3133881² = 19642420244322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3133811) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 174096 + ... + 174113.

It is an arithmetic number, because the mean of its divisors is an integer number (754455).

Almost surely, 2^3133881 is an apocalyptic number.

It is an amenable number.

3133881 is a deficient number, since it is larger than the sum of its proper divisors (1392849).

3133881 is a wasteful number, since it uses less digits than its factorization.

3133881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348215 (or 348212 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 3133881 is about 1770.2770969540. The cubic root of 3133881 is about 146.3392529930.

The spelling of 3133881 in words is "three million, one hundred thirty-three thousand, eight hundred eighty-one".