1137766165 has 4 divisors (see below), whose sum is σ = 1365319404. Its totient is φ = 910212928.

The previous prime is 1137766163. The next prime is 1137766171. The reversal of 1137766165 is 5616677311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 256448196 + 881317969 = 16014^2 + 29687^2 .

It is a cyclic number.

It is not a de Polignac number, because 1137766165 - 2¹ = 1137766163 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1137766163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113776612 + ... + 113776621.

It is an arithmetic number, because the mean of its divisors is an integer number (341329851).

Almost surely, 2^1137766165 is an apocalyptic number.

It is an amenable number.

1137766165 is a deficient number, since it is larger than the sum of its proper divisors (227553239).

1137766165 is an equidigital number, since it uses as much as digits as its factorization.

1137766165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227553238.

The product of its digits is 158760, while the sum is 43.

The square root of 1137766165 is about 33730.7895697684. The cubic root of 1137766165 is about 1043.9611525427.

The spelling of 1137766165 in words is "one billion, one hundred thirty-seven million, seven hundred sixty-six thousand, one hundred sixty-five".