125311157 has 2 divisors, whose sum is σ = 125311158. Its totient is φ = 125311156.

The previous prime is 125311127. The next prime is 125311163. The reversal of 125311157 is 751113521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120253156 + 5058001 = 10966^2 + 2249^2 .

It is a cyclic number.

It is not a de Polignac number, because 125311157 - 2⁶ = 125311093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125311127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62655578 + 62655579.

It is an arithmetic number, because the mean of its divisors is an integer number (62655579).

Almost surely, 2^125311157 is an apocalyptic number.

It is an amenable number.

125311157 is a deficient number, since it is larger than the sum of its proper divisors (1).

125311157 is an equidigital number, since it uses as much as digits as its factorization.

125311157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1050, while the sum is 26.

The square root of 125311157 is about 11194.2466026080. The cubic root of 125311157 is about 500.4145322311.

Adding to 125311157 its reverse (751113521), we get a palindrome (876424678).

The spelling of 125311157 in words is "one hundred twenty-five million, three hundred eleven thousand, one hundred fifty-seven".