125726057 has 2 divisors, whose sum is σ = 125726058. Its totient is φ = 125726056.

The previous prime is 125726053. The next prime is 125726077. The reversal of 125726057 is 750627521.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96609241 + 29116816 = 9829^2 + 5396^2 .

It is a cyclic number.

It is not a de Polignac number, because 125726057 - 2² = 125726053 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (125726053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62863028 + 62863029.

It is an arithmetic number, because the mean of its divisors is an integer number (62863029).

Almost surely, 2^125726057 is an apocalyptic number.

It is an amenable number.

125726057 is a deficient number, since it is larger than the sum of its proper divisors (1).

125726057 is an equidigital number, since it uses as much as digits as its factorization.

125726057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29400, while the sum is 35.

The square root of 125726057 is about 11212.7631295769. The cubic root of 125726057 is about 500.9662076827.

The spelling of 125726057 in words is "one hundred twenty-five million, seven hundred twenty-six thousand, fifty-seven".