37920131 has 2 divisors, whose sum is σ = 37920132. Its totient is φ = 37920130.

The previous prime is 37920097. The next prime is 37920151. The reversal of 37920131 is 13102973.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 37920131 - 2²² = 33725827 is a prime.

It is a super-2 number, since 2×37920131² = 2875872670114322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 37920131.

It is not a weakly prime, because it can be changed into another prime (37920151) 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 as a sum of consecutive naturals, namely, 18960065 + 18960066.

It is an arithmetic number, because the mean of its divisors is an integer number (18960066).

Almost surely, 2^37920131 is an apocalyptic number.

37920131 is a deficient number, since it is larger than the sum of its proper divisors (1).

37920131 is an equidigital number, since it uses as much as digits as its factorization.

37920131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 37920131 is about 6157.9323640326. The cubic root of 37920131 is about 335.9618336987.

The spelling of 37920131 in words is "thirty-seven million, nine hundred twenty thousand, one hundred thirty-one".