3131139 has 16 divisors (see below), whose sum is σ = 4584960. Its totient is φ = 1884960.

The previous prime is 3131137. The next prime is 3131153. The reversal of 3131139 is 9311313.

It is not a de Polignac number, because 3131139 - 2¹ = 3131137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3131137) 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, 7689 + ... + 8085.

It is an arithmetic number, because the mean of its divisors is an integer number (286560).

Almost surely, 2^3131139 is an apocalyptic number.

3131139 is a deficient number, since it is larger than the sum of its proper divisors (1453821).

3131139 is a wasteful number, since it uses less digits than its factorization.

3131139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650.

The product of its digits is 243, while the sum is 21.

The square root of 3131139 is about 1769.5024724481. The cubic root of 3131139 is about 146.2965605278.

The spelling of 3131139 in words is "three million, one hundred thirty-one thousand, one hundred thirty-nine".