125231 has 2 divisors, whose sum is σ = 125232. Its totient is φ = 125230.

The previous prime is 125221. The next prime is 125243. The reversal of 125231 is 132521.

It is a happy number.

125231 is nontrivially palindromic in base 2.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125231 is a prime.

It is a super-2 number, since 2×125231² = 31365606722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62615 + 62616.

It is an arithmetic number, because the mean of its divisors is an integer number (62616).

2¹²⁵²³¹ is an apocalyptic number.

125231 is a deficient number, since it is larger than the sum of its proper divisors (1).

125231 is an equidigital number, since it uses as much as digits as its factorization.

125231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60, while the sum is 14.

The square root of 125231 is about 353.8799231378. The cubic root of 125231 is about 50.0307810467.

Adding to 125231 its reverse (132521), we get a palindrome (257752).

The spelling of 125231 in words is "one hundred twenty-five thousand, two hundred thirty-one".