31148037 has 16 divisors (see below), whose sum is σ = 46231680. Its totient is φ = 20726496.

The previous prime is 31148023. The next prime is 31148071. The reversal of 31148037 is 73084113.

It is not a de Polignac number, because 31148037 - 2¹⁰ = 31147013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 31148037.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31148137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25513 + ... + 26705.

It is an arithmetic number, because the mean of its divisors is an integer number (2889480).

Almost surely, 2^31148037 is an apocalyptic number.

It is an amenable number.

31148037 is a deficient number, since it is larger than the sum of its proper divisors (15083643).

31148037 is a wasteful number, since it uses less digits than its factorization.

31148037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2169 (or 2163 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 31148037 is about 5581.0426445244. The cubic root of 31148037 is about 314.6373149980.

The spelling of 31148037 in words is "thirty-one million, one hundred forty-eight thousand, thirty-seven".