125470657 has 4 divisors (see below), whose sum is σ = 135122260. Its totient is φ = 115819056.

The previous prime is 125470649. The next prime is 125470669. The reversal of 125470657 is 756074521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 756074521 = 53 ⋅14265557.

It can be written as a sum of positive squares in 2 ways, for example, as 34000561 + 91470096 = 5831^2 + 9564^2 .

It is a cyclic number.

It is not a de Polignac number, because 125470657 - 2³ = 125470649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125470627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4825782 + ... + 4825807.

It is an arithmetic number, because the mean of its divisors is an integer number (33780565).

Almost surely, 2^125470657 is an apocalyptic number.

It is an amenable number.

125470657 is a deficient number, since it is larger than the sum of its proper divisors (9651603).

125470657 is an equidigital number, since it uses as much as digits as its factorization.

125470657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9651602.

The product of its (nonzero) digits is 58800, while the sum is 37.

The square root of 125470657 is about 11201.3685324607. The cubic root of 125470657 is about 500.6267566905.

The spelling of 125470657 in words is "one hundred twenty-five million, four hundred seventy thousand, six hundred fifty-seven".