1138126177 has 2 divisors, whose sum is σ = 1138126178. Its totient is φ = 1138126176.

The previous prime is 1138126159. The next prime is 1138126189. The reversal of 1138126177 is 7716218311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 685968481 + 452157696 = 26191^2 + 21264^2 .

It is an emirp because it is prime and its reverse (7716218311) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1138126177 is a prime.

It is not a weakly prime, because it can be changed into another prime (1138126477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 569063088 + 569063089.

It is an arithmetic number, because the mean of its divisors is an integer number (569063089).

Almost surely, 2^1138126177 is an apocalyptic number.

It is an amenable number.

1138126177 is a deficient number, since it is larger than the sum of its proper divisors (1).

1138126177 is an equidigital number, since it uses as much as digits as its factorization.

1138126177 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14112, while the sum is 37.

The square root of 1138126177 is about 33736.1256963511. The cubic root of 1138126177 is about 1044.0712510029.

The spelling of 1138126177 in words is "one billion, one hundred thirty-eight million, one hundred twenty-six thousand, one hundred seventy-seven".