125647265 has 4 divisors (see below), whose sum is σ = 150776724. Its totient is φ = 100517808.

The previous prime is 125647261. The next prime is 125647267. The reversal of 125647265 is 562746521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 562746521 = 223 ⋅2523527.

It can be written as a sum of positive squares in 2 ways, for example, as 41576704 + 84070561 = 6448^2 + 9169^2 .

It is a cyclic number.

It is not a de Polignac number, because 125647265 - 2² = 125647261 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125647261) 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, 12564722 + ... + 12564731.

It is an arithmetic number, because the mean of its divisors is an integer number (37694181).

Almost surely, 2^125647265 is an apocalyptic number.

It is an amenable number.

125647265 is a deficient number, since it is larger than the sum of its proper divisors (25129459).

125647265 is an equidigital number, since it uses as much as digits as its factorization.

125647265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25129458.

The product of its digits is 100800, while the sum is 38.

The square root of 125647265 is about 11209.2490827887. The cubic root of 125647265 is about 500.8615346634.

The spelling of 125647265 in words is "one hundred twenty-five million, six hundred forty-seven thousand, two hundred sixty-five".