31837062149 has 2 divisors, whose sum is σ = 31837062150. Its totient is φ = 31837062148.

The previous prime is 31837062119. The next prime is 31837062161. The reversal of 31837062149 is 94126073813.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31797309124 + 39753025 = 178318^2 + 6305^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31837062149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31837062119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15918531074 + 15918531075.

It is an arithmetic number, because the mean of its divisors is an integer number (15918531075).

Almost surely, 2^31837062149 is an apocalyptic number.

It is an amenable number.

31837062149 is a deficient number, since it is larger than the sum of its proper divisors (1).

31837062149 is an equidigital number, since it uses as much as digits as its factorization.

31837062149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 44.

The spelling of 31837062149 in words is "thirty-one billion, eight hundred thirty-seven million, sixty-two thousand, one hundred forty-nine".