2107137997 has 2 divisors, whose sum is σ = 2107137998. Its totient is φ = 2107137996.

The previous prime is 2107137971. The next prime is 2107138009. The reversal of 2107137997 is 7997317012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2106901801 + 236196 = 45901^2 + 486^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2107137997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2107137937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1053568998 + 1053568999.

It is an arithmetic number, because the mean of its divisors is an integer number (1053568999).

Almost surely, 2^2107137997 is an apocalyptic number.

It is an amenable number.

2107137997 is a deficient number, since it is larger than the sum of its proper divisors (1).

2107137997 is an equidigital number, since it uses as much as digits as its factorization.

2107137997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 166698, while the sum is 46.

The square root of 2107137997 is about 45903.5728130175. The cubic root of 2107137997 is about 1282.0284400855.

The spelling of 2107137997 in words is "two billion, one hundred seven million, one hundred thirty-seven thousand, nine hundred ninety-seven".