38808131 has 2 divisors, whose sum is σ = 38808132. Its totient is φ = 38808130.

The previous prime is 38808113. The next prime is 38808163. The reversal of 38808131 is 13180883.

Together with previous prime (38808113) it forms an Ormiston pair, because they use the same digits, order apart.

It is an a-pointer prime, because the next prime (38808163) can be obtained adding 38808131 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38808131 - 2¹⁴ = 38791747 is a prime.

It is a super-2 number, since 2×38808131² = 3012142063426322, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (38808191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19404065 + 19404066.

It is an arithmetic number, because the mean of its divisors is an integer number (19404066).

Almost surely, 2^38808131 is an apocalyptic number.

38808131 is a deficient number, since it is larger than the sum of its proper divisors (1).

38808131 is an equidigital number, since it uses as much as digits as its factorization.

38808131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 38808131 is about 6229.6172434589. The cubic root of 38808131 is about 338.5641030114.

The spelling of 38808131 in words is "thirty-eight million, eight hundred eight thousand, one hundred thirty-one".