125140231 has 2 divisors, whose sum is σ = 125140232. Its totient is φ = 125140230.

The previous prime is 125140229. The next prime is 125140243. The reversal of 125140231 is 132041521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125140231 - 2¹ = 125140229 is a prime.

It is a super-2 number, since 2×125140231² = 31320154829466722, which contains 22 as substring.

Together with 125140229, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 125140199 and 125140208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125140291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62570115 + 62570116.

It is an arithmetic number, because the mean of its divisors is an integer number (62570116).

Almost surely, 2^125140231 is an apocalyptic number.

125140231 is a deficient number, since it is larger than the sum of its proper divisors (1).

125140231 is an equidigital number, since it uses as much as digits as its factorization.

125140231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 125140231 is about 11186.6094505887. The cubic root of 125140231 is about 500.1869047912.

Adding to 125140231 its reverse (132041521), we get a palindrome (257181752).

The spelling of 125140231 in words is "one hundred twenty-five million, one hundred forty thousand, two hundred thirty-one".