125644853 has 4 divisors (see below), whose sum is σ = 132257760. Its totient is φ = 119031948.

The previous prime is 125644847. The next prime is 125644861. The reversal of 125644853 is 358446521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 125644853 - 2¹⁸ = 125382709 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125644843) 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, 3306425 + ... + 3306462.

It is an arithmetic number, because the mean of its divisors is an integer number (33064440).

Almost surely, 2^125644853 is an apocalyptic number.

It is an amenable number.

125644853 is a deficient number, since it is larger than the sum of its proper divisors (6612907).

125644853 is an equidigital number, since it uses as much as digits as its factorization.

125644853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6612906.

The product of its digits is 115200, while the sum is 38.

The square root of 125644853 is about 11209.1414925497. The cubic root of 125644853 is about 500.8583296971.

The spelling of 125644853 in words is "one hundred twenty-five million, six hundred forty-four thousand, eight hundred fifty-three".