125426531 has 2 divisors, whose sum is σ = 125426532. Its totient is φ = 125426530.

The previous prime is 125426513. The next prime is 125426549. The reversal of 125426531 is 135624521.

Together with previous prime (125426513) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (125426513) and next prime (125426549).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125426531 is a prime.

It is a super-2 number, since 2×125426531² = 31463629357387922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 125426494 and 125426503.

It is not a weakly prime, because it can be changed into another prime (125426591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62713265 + 62713266.

It is an arithmetic number, because the mean of its divisors is an integer number (62713266).

Almost surely, 2^125426531 is an apocalyptic number.

125426531 is a deficient number, since it is larger than the sum of its proper divisors (1).

125426531 is an equidigital number, since it uses as much as digits as its factorization.

125426531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 29.

The square root of 125426531 is about 11199.3986892154. The cubic root of 125426531 is about 500.5680623659.

The spelling of 125426531 in words is "one hundred twenty-five million, four hundred twenty-six thousand, five hundred thirty-one".