37138138231 has 2 divisors, whose sum is σ = 37138138232. Its totient is φ = 37138138230.

The previous prime is 37138138223. The next prime is 37138138451. The reversal of 37138138231 is 13283183173.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 37138138231 - 2³ = 37138138223 is a prime.

It is a super-2 number, since 2×37138138231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37138118231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18569069115 + 18569069116.

It is an arithmetic number, because the mean of its divisors is an integer number (18569069116).

Almost surely, 2^37138138231 is an apocalyptic number.

37138138231 is a deficient number, since it is larger than the sum of its proper divisors (1).

37138138231 is an equidigital number, since it uses as much as digits as its factorization.

37138138231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 40.

The spelling of 37138138231 in words is "thirty-seven billion, one hundred thirty-eight million, one hundred thirty-eight thousand, two hundred thirty-one".