125681423 has 12 divisors (see below), whose sum is σ = 146464920. Its totient is φ = 107532432.

The previous prime is 125681419. The next prime is 125681443. The reversal of 125681423 is 324186521.

It is not a de Polignac number, because 125681423 - 2² = 125681419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 125681423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125681443) 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, 29513 + ... + 33501.

It is an arithmetic number, because the mean of its divisors is an integer number (12205410).

Almost surely, 2^125681423 is an apocalyptic number.

125681423 is a deficient number, since it is larger than the sum of its proper divisors (20783497).

125681423 is an equidigital number, since it uses as much as digits as its factorization.

125681423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4646 (or 4639 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 125681423 is about 11210.7726317146. The cubic root of 125681423 is about 500.9069180049.

The spelling of 125681423 in words is "one hundred twenty-five million, six hundred eighty-one thousand, four hundred twenty-three".