125665241 has 16 divisors (see below), whose sum is σ = 144925200. Its totient is φ = 107931648.

The previous prime is 125665217. The next prime is 125665249. The reversal of 125665241 is 142566521.

It can be written as a sum of positive squares in 8 ways, for example, as 37699600 + 87965641 = 6140^2 + 9379^2 .

It is a cyclic number.

It is not a de Polignac number, because 125665241 - 2¹⁴ = 125648857 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125665198 and 125665207.

It is not an unprimeable number, because it can be changed into a prime (125665249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16475 + ... + 22863.

It is an arithmetic number, because the mean of its divisors is an integer number (9057825).

Almost surely, 2^125665241 is an apocalyptic number.

It is an amenable number.

125665241 is a deficient number, since it is larger than the sum of its proper divisors (19259959).

125665241 is a wasteful number, since it uses less digits than its factorization.

125665241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6508.

The product of its digits is 14400, while the sum is 32.

The square root of 125665241 is about 11210.0508919451. The cubic root of 125665241 is about 500.8854191404.

The spelling of 125665241 in words is "one hundred twenty-five million, six hundred sixty-five thousand, two hundred forty-one".