125109423 has 12 divisors (see below), whose sum is σ = 180947520. Its totient is φ = 83298336.

The previous prime is 125109421. The next prime is 125109427. The reversal of 125109423 is 324901521.

It is not a de Polignac number, because 125109423 - 2¹ = 125109421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125109421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1311 + ... + 15872.

It is an arithmetic number, because the mean of its divisors is an integer number (15078960).

Almost surely, 2^125109423 is an apocalyptic number.

125109423 is a deficient number, since it is larger than the sum of its proper divisors (55838097).

125109423 is a wasteful number, since it uses less digits than its factorization.

125109423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17998 (or 17995 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 125109423 is about 11185.2323623606. The cubic root of 125109423 is about 500.1458547820.

The spelling of 125109423 in words is "one hundred twenty-five million, one hundred nine thousand, four hundred twenty-three".