30031137 has 12 divisors (see below), whose sum is σ = 43567524. Its totient is φ = 19933440.

The previous prime is 30031063. The next prime is 30031201. The reversal of 30031137 is 73113003.

It can be written as a sum of positive squares in 2 ways, for example, as 2405601 + 27625536 = 1551^2 + 5256^2 .

It is not a de Polignac number, because 30031137 - 2⁸ = 30030881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30031237) 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, 5064 + ... + 9257.

It is an arithmetic number, because the mean of its divisors is an integer number (3630627).

Almost surely, 2^30031137 is an apocalyptic number.

It is an amenable number.

30031137 is a deficient number, since it is larger than the sum of its proper divisors (13536387).

30031137 is a wasteful number, since it uses less digits than its factorization.

30031137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14560 (or 14557 counting only the distinct ones).

The product of its (nonzero) digits is 189, while the sum is 18.

The square root of 30031137 is about 5480.0672441130. The cubic root of 30031137 is about 310.8307133127.

The spelling of 30031137 in words is "thirty million, thirty-one thousand, one hundred thirty-seven".