125573647 has 4 divisors (see below), whose sum is σ = 126002520. Its totient is φ = 125144776.

The previous prime is 125573593. The next prime is 125573659. The reversal of 125573647 is 746375521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 125573647 - 2¹⁹ = 125049359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125573047) 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, 213997 + ... + 214582.

It is an arithmetic number, because the mean of its divisors is an integer number (31500630).

Almost surely, 2^125573647 is an apocalyptic number.

125573647 is a deficient number, since it is larger than the sum of its proper divisors (428873).

125573647 is an equidigital number, since it uses as much as digits as its factorization.

125573647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428872.

The product of its digits is 176400, while the sum is 40.

The square root of 125573647 is about 11205.9647955899. The cubic root of 125573647 is about 500.7636956108.

The spelling of 125573647 in words is "one hundred twenty-five million, five hundred seventy-three thousand, six hundred forty-seven".