31142037 has 16 divisors (see below), whose sum is σ = 42497280. Its totient is φ = 20280000.

The previous prime is 31142021. The next prime is 31142039. The reversal of 31142037 is 73024113.

It is not a de Polignac number, because 31142037 - 2⁴ = 31142021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31142039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23287 + ... + 24587.

It is an arithmetic number, because the mean of its divisors is an integer number (2656080).

Almost surely, 2^31142037 is an apocalyptic number.

It is an amenable number.

31142037 is a deficient number, since it is larger than the sum of its proper divisors (11355243).

31142037 is a wasteful number, since it uses less digits than its factorization.

31142037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1484.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 31142037 is about 5580.5050846675. The cubic root of 31142037 is about 314.6171109947.

It can be divided in two parts, 3114 and 2037, that added together give a triangular number (5151 = T₁₀₁).

The spelling of 31142037 in words is "thirty-one million, one hundred forty-two thousand, thirty-seven".