125617231 has 8 divisors (see below), whose sum is σ = 127431360. Its totient is φ = 123813888.

The previous prime is 125617223. The next prime is 125617243. The reversal of 125617231 is 132716521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125617231 - 2³ = 125617223 is a prime.

It is a super-2 number, since 2×125617231² = 31559377448214722, 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 125617231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125617201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22410 + ... + 27448.

It is an arithmetic number, because the mean of its divisors is an integer number (15928920).

Almost surely, 2^125617231 is an apocalyptic number.

125617231 is a deficient number, since it is larger than the sum of its proper divisors (1814129).

125617231 is an equidigital number, since it uses as much as digits as its factorization.

125617231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5393.

The product of its digits is 2520, while the sum is 28.

The square root of 125617231 is about 11207.9093054860. The cubic root of 125617231 is about 500.8216237958.

The spelling of 125617231 in words is "one hundred twenty-five million, six hundred seventeen thousand, two hundred thirty-one".