5137071997 has 2 divisors, whose sum is σ = 5137071998. Its totient is φ = 5137071996.

The previous prime is 5137071949. The next prime is 5137072001. The reversal of 5137071997 is 7991707315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5118114681 + 18957316 = 71541^2 + 4354^2 .

It is a cyclic number.

It is not a de Polignac number, because 5137071997 - 2¹⁹ = 5136547709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5137071997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5137071197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2568535998 + 2568535999.

It is an arithmetic number, because the mean of its divisors is an integer number (2568535999).

Almost surely, 2^5137071997 is an apocalyptic number.

It is an amenable number.

5137071997 is a deficient number, since it is larger than the sum of its proper divisors (1).

5137071997 is an equidigital number, since it uses as much as digits as its factorization.

5137071997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 416745, while the sum is 49.

The square root of 5137071997 is about 71673.3702081882. The cubic root of 5137071997 is about 1725.4612779701.

The spelling of 5137071997 in words is "five billion, one hundred thirty-seven million, seventy-one thousand, nine hundred ninety-seven".