125343857 has 2 divisors, whose sum is σ = 125343858. Its totient is φ = 125343856.

The previous prime is 125343853. The next prime is 125343913. The reversal of 125343857 is 758343521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97634161 + 27709696 = 9881^2 + 5264^2 .

It is a cyclic number.

It is not a de Polignac number, because 125343857 - 2² = 125343853 is a prime.

It is a super-2 number, since 2×125343857² = 31422164975272898, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 125343857.

It is not a weakly prime, because it can be changed into another prime (125343853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62671928 + 62671929.

It is an arithmetic number, because the mean of its divisors is an integer number (62671929).

Almost surely, 2^125343857 is an apocalyptic number.

It is an amenable number.

125343857 is a deficient number, since it is larger than the sum of its proper divisors (1).

125343857 is an equidigital number, since it uses as much as digits as its factorization.

125343857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100800, while the sum is 38.

The square root of 125343857 is about 11195.7070790549. The cubic root of 125343857 is about 500.4580562408.

The spelling of 125343857 in words is "one hundred twenty-five million, three hundred forty-three thousand, eight hundred fifty-seven".