3131739 has 36 divisors (see below), whose sum is σ = 5138640. Its totient is φ = 1834560.

The previous prime is 3131701. The next prime is 3131743. The reversal of 3131739 is 9371313.

It is not a de Polignac number, because 3131739 - 2⁸ = 3131483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131239) 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, 44074 + ... + 44144.

It is an arithmetic number, because the mean of its divisors is an integer number (142740).

Almost surely, 2^3131739 is an apocalyptic number.

3131739 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

3131739 is a deficient number, since it is larger than the sum of its proper divisors (2006901).

3131739 is a wasteful number, since it uses less digits than its factorization.

3131739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132 (or 116 counting only the distinct ones).

The product of its digits is 1701, while the sum is 27.

The square root of 3131739 is about 1769.6720035080. The cubic root of 3131739 is about 146.3059045535.

The spelling of 3131739 in words is "three million, one hundred thirty-one thousand, seven hundred thirty-nine".