125112231 has 12 divisors (see below), whose sum is σ = 191348352. Its totient is φ = 78501696.

The previous prime is 125112223. The next prime is 125112233. The reversal of 125112231 is 132211521.

It is not a de Polignac number, because 125112231 - 2³ = 125112223 is a prime.

It is a super-2 number, since 2×125112231² = 31306140691594722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125112233) 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 in 11 ways as a sum of consecutive naturals, for example, 408711 + ... + 409016.

It is an arithmetic number, because the mean of its divisors is an integer number (15945696).

Almost surely, 2^125112231 is an apocalyptic number.

125112231 is a deficient number, since it is larger than the sum of its proper divisors (66236121).

125112231 is a wasteful number, since it uses less digits than its factorization.

125112231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817750 (or 817747 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 125112231 is about 11185.3578843057. The cubic root of 125112231 is about 500.1495965706.

Adding to 125112231 its reverse (132211521), we get a palindrome (257323752).

The spelling of 125112231 in words is "one hundred twenty-five million, one hundred twelve thousand, two hundred thirty-one".