125141557 has 2 divisors, whose sum is σ = 125141558. Its totient is φ = 125141556.

The previous prime is 125141503. The next prime is 125141563. The reversal of 125141557 is 755141521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65141041 + 60000516 = 8071^2 + 7746^2 .

It is a cyclic number.

It is not a de Polignac number, because 125141557 - 2²³ = 116752949 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125141857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62570778 + 62570779.

It is an arithmetic number, because the mean of its divisors is an integer number (62570779).

Almost surely, 2^125141557 is an apocalyptic number.

It is an amenable number.

125141557 is a deficient number, since it is larger than the sum of its proper divisors (1).

125141557 is an equidigital number, since it uses as much as digits as its factorization.

125141557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7000, while the sum is 31.

The square root of 125141557 is about 11186.6687177193. The cubic root of 125141557 is about 500.1886714639.

The spelling of 125141557 in words is "one hundred twenty-five million, one hundred forty-one thousand, five hundred fifty-seven".