125461657 has 2 divisors, whose sum is σ = 125461658. Its totient is φ = 125461656.

The previous prime is 125461601. The next prime is 125461663. The reversal of 125461657 is 756164521.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95824521 + 29637136 = 9789^2 + 5444^2 .

It is a cyclic number.

It is not a de Polignac number, because 125461657 - 2¹⁵ = 125428889 is a prime.

It is not a weakly prime, because it can be changed into another prime (125471657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62730828 + 62730829.

It is an arithmetic number, because the mean of its divisors is an integer number (62730829).

Almost surely, 2^125461657 is an apocalyptic number.

It is an amenable number.

125461657 is a deficient number, since it is larger than the sum of its proper divisors (1).

125461657 is an equidigital number, since it uses as much as digits as its factorization.

125461657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50400, while the sum is 37.

The square root of 125461657 is about 11200.9667886303. The cubic root of 125461657 is about 500.6147864321.

The spelling of 125461657 in words is "one hundred twenty-five million, four hundred sixty-one thousand, six hundred fifty-seven".