1164997157 has 2 divisors, whose sum is σ = 1164997158. Its totient is φ = 1164997156.

The previous prime is 1164997129. The next prime is 1164997189. The reversal of 1164997157 is 7517994611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1097000641 + 67996516 = 33121^2 + 8246^2 .

It is a cyclic number.

It is not a de Polignac number, because 1164997157 - 2⁸ = 1164996901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1164990157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 582498578 + 582498579.

It is an arithmetic number, because the mean of its divisors is an integer number (582498579).

Almost surely, 2^1164997157 is an apocalyptic number.

It is an amenable number.

1164997157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1164997157 is an equidigital number, since it uses as much as digits as its factorization.

1164997157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 476280, while the sum is 50.

The square root of 1164997157 is about 34132.0546847095. The cubic root of 1164997157 is about 1052.2242063946.

The spelling of 1164997157 in words is "one billion, one hundred sixty-four million, nine hundred ninety-seven thousand, one hundred fifty-seven".