125125757 has 2 divisors, whose sum is σ = 125125758. Its totient is φ = 125125756.

The previous prime is 125125751. The next prime is 125125801. The reversal of 125125757 is 757521521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118679236 + 6446521 = 10894^2 + 2539^2 .

It is a cyclic number.

It is not a de Polignac number, because 125125757 - 2¹⁴ = 125109373 is a prime.

It is equal to p_7116857 and since 125125757 and 7116857 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125125751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62562878 + 62562879.

It is an arithmetic number, because the mean of its divisors is an integer number (62562879).

Almost surely, 2^125125757 is an apocalyptic number.

It is an amenable number.

125125757 is a deficient number, since it is larger than the sum of its proper divisors (1).

125125757 is an equidigital number, since it uses as much as digits as its factorization.

125125757 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24500, while the sum is 35.

The square root of 125125757 is about 11185.9624977022. The cubic root of 125125757 is about 500.1676198009.

The spelling of 125125757 in words is "one hundred twenty-five million, one hundred twenty-five thousand, seven hundred fifty-seven".