125724653 has 4 divisors (see below), whose sum is σ = 132341760. Its totient is φ = 119107548.

The previous prime is 125724649. The next prime is 125724689. The reversal of 125724653 is 356427521.

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 125724653 - 2² = 125724649 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 (125724353) 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, 3308525 + ... + 3308562.

It is an arithmetic number, because the mean of its divisors is an integer number (33085440).

Almost surely, 2^125724653 is an apocalyptic number.

It is an amenable number.

125724653 is a deficient number, since it is larger than the sum of its proper divisors (6617107).

125724653 is an equidigital number, since it uses as much as digits as its factorization.

125724653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6617106.

The product of its digits is 50400, while the sum is 35.

The square root of 125724653 is about 11212.7005221757. The cubic root of 125724653 is about 500.9643428899.

The spelling of 125724653 in words is "one hundred twenty-five million, seven hundred twenty-four thousand, six hundred fifty-three".