3132981 has 12 divisors (see below), whose sum is σ = 4791852. Its totient is φ = 1965696.

The previous prime is 3132979. The next prime is 3133019. The reversal of 3132981 is 1892313.

It can be written as a sum of positive squares in 2 ways, for example, as 2452356 + 680625 = 1566^2 + 825^2 .

It is not a de Polignac number, because 3132981 - 2¹ = 3132979 is a prime.

It is a super-2 number, since 2×3132981² = 19631139892722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3132971) 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, 10086 + ... + 10391.

It is an arithmetic number, because the mean of its divisors is an integer number (399321).

Almost surely, 2^3132981 is an apocalyptic number.

It is an amenable number.

3132981 is a deficient number, since it is larger than the sum of its proper divisors (1658871).

3132981 is a wasteful number, since it uses less digits than its factorization.

3132981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20500 (or 20497 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 3132981 is about 1770.0228812080. The cubic root of 3132981 is about 146.3252428953.

It can be divided in two parts, 31329 and 81, that multiplied together give a square (2537649 = 1593²).

The spelling of 3132981 in words is "three million, one hundred thirty-two thousand, nine hundred eighty-one".