125897123 has 8 divisors (see below), whose sum is σ = 137934576. Its totient is φ = 113958400.

The previous prime is 125897113. The next prime is 125897131. The reversal of 125897123 is 321798521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125897123 - 2²⁶ = 58788259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125897113) 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 in 7 ways as a sum of consecutive naturals, for example, 21998 + ... + 27123.

It is an arithmetic number, because the mean of its divisors is an integer number (17241822).

Almost surely, 2^125897123 is an apocalyptic number.

125897123 is a deficient number, since it is larger than the sum of its proper divisors (12037453).

125897123 is a wasteful number, since it uses less digits than its factorization.

125897123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49365.

The product of its digits is 30240, while the sum is 38.

The square root of 125897123 is about 11220.3887187566. The cubic root of 125897123 is about 501.1933137389.

The spelling of 125897123 in words is "one hundred twenty-five million, eight hundred ninety-seven thousand, one hundred twenty-three".