8044172137 has 2 divisors, whose sum is σ = 8044172138. Its totient is φ = 8044172136.

The previous prime is 8044172093. The next prime is 8044172179. The reversal of 8044172137 is 7312714408.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7873190361 + 170981776 = 88731^2 + 13076^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8044172137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8044172096 and 8044172105.

It is not a weakly prime, because it can be changed into another prime (8044172197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4022086068 + 4022086069.

It is an arithmetic number, because the mean of its divisors is an integer number (4022086069).

Almost surely, 2^8044172137 is an apocalyptic number.

It is an amenable number.

8044172137 is a deficient number, since it is larger than the sum of its proper divisors (1).

8044172137 is an equidigital number, since it uses as much as digits as its factorization.

8044172137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 8044172137 is about 89689.3089336739. The cubic root of 8044172137 is about 2003.6742572001.

The spelling of 8044172137 in words is "eight billion, forty-four million, one hundred seventy-two thousand, one hundred thirty-seven".