39290131 has 2 divisors, whose sum is σ = 39290132. Its totient is φ = 39290130.

The previous prime is 39290129. The next prime is 39290137. The reversal of 39290131 is 13109293.

It is a weak prime.

It is an emirp because it is prime and its reverse (13109293) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 39290131 - 2¹ = 39290129 is a prime.

It is a super-2 number, since 2×39290131² = 3087428787994322, which contains 22 as substring.

Together with 39290129, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 39290131.

It is not a weakly prime, because it can be changed into another prime (39290137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19645065 + 19645066.

It is an arithmetic number, because the mean of its divisors is an integer number (19645066).

Almost surely, 2^39290131 is an apocalyptic number.

39290131 is a deficient number, since it is larger than the sum of its proper divisors (1).

39290131 is an equidigital number, since it uses as much as digits as its factorization.

39290131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 39290131 is about 6268.1840272921. The cubic root of 39290131 is about 339.9600039457.

The spelling of 39290131 in words is "thirty-nine million, two hundred ninety thousand, one hundred thirty-one".