1125136157 has 2 divisors, whose sum is σ = 1125136158. Its totient is φ = 1125136156.

The previous prime is 1125136139. The next prime is 1125136213. The reversal of 1125136157 is 7516315211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 666362596 + 458773561 = 25814^2 + 21419^2 .

It is a cyclic number.

It is not a de Polignac number, because 1125136157 - 2¹⁸ = 1124874013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1125136127) 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, 562568078 + 562568079.

It is an arithmetic number, because the mean of its divisors is an integer number (562568079).

Almost surely, 2^1125136157 is an apocalyptic number.

It is an amenable number.

1125136157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1125136157 is an equidigital number, since it uses as much as digits as its factorization.

1125136157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6300, while the sum is 32.

The square root of 1125136157 is about 33543.0493098049. The cubic root of 1125136157 is about 1040.0838680516.

The spelling of 1125136157 in words is "one billion, one hundred twenty-five million, one hundred thirty-six thousand, one hundred fifty-seven".