2175138137 has 2 divisors, whose sum is σ = 2175138138. Its totient is φ = 2175138136.

The previous prime is 2175138113. The next prime is 2175138193. The reversal of 2175138137 is 7318315712.

2175138137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1922296336 + 252841801 = 43844^2 + 15901^2 .

It is a cyclic number.

It is not a de Polignac number, because 2175138137 - 2²⁴ = 2158360921 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2175138137.

It is not a weakly prime, because it can be changed into another prime (2175138337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1087569068 + 1087569069.

It is an arithmetic number, because the mean of its divisors is an integer number (1087569069).

Almost surely, 2^2175138137 is an apocalyptic number.

It is an amenable number.

2175138137 is a deficient number, since it is larger than the sum of its proper divisors (1).

2175138137 is an equidigital number, since it uses as much as digits as its factorization.

2175138137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35280, while the sum is 38.

The square root of 2175138137 is about 46638.3762260223. The cubic root of 2175138137 is about 1295.6736132649.

The spelling of 2175138137 in words is "two billion, one hundred seventy-five million, one hundred thirty-eight thousand, one hundred thirty-seven".