125252731 has 4 divisors (see below), whose sum is σ = 131845000. Its totient is φ = 118660464.

The previous prime is 125252713. The next prime is 125252749. The reversal of 125252731 is 137252521.

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

It is an interprime number because it is at equal distance from previous prime (125252713) and next prime (125252749).

It is a cyclic number.

It is not a de Polignac number, because 125252731 - 2⁹ = 125252219 is a prime.

It is a super-2 number, since 2×125252731² = 31376493245916722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125252731.

It is not an unprimeable number, because it can be changed into a prime (125255731) 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, 3296106 + ... + 3296143.

It is an arithmetic number, because the mean of its divisors is an integer number (32961250).

Almost surely, 2^125252731 is an apocalyptic number.

125252731 is a deficient number, since it is larger than the sum of its proper divisors (6592269).

125252731 is an equidigital number, since it uses as much as digits as its factorization.

125252731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6592268.

The product of its digits is 4200, while the sum is 28.

The square root of 125252731 is about 11191.6366542164. The cubic root of 125252731 is about 500.3367478176.

The spelling of 125252731 in words is "one hundred twenty-five million, two hundred fifty-two thousand, seven hundred thirty-one".