125513423 has 16 divisors (see below), whose sum is σ = 147899136. Its totient is φ = 104276160.

The previous prime is 125513419. The next prime is 125513429. The reversal of 125513423 is 324315521.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 125513423 - 2² = 125513419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125513392 and 125513401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125513429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45440 + ... + 48122.

It is an arithmetic number, because the mean of its divisors is an integer number (9243696).

Almost surely, 2^125513423 is an apocalyptic number.

125513423 is a deficient number, since it is larger than the sum of its proper divisors (22385713).

125513423 is a wasteful number, since it uses less digits than its factorization.

125513423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2894.

The product of its digits is 3600, while the sum is 26.

The square root of 125513423 is about 11203.2773329950. The cubic root of 125513423 is about 500.6836288771.

Adding to 125513423 its reverse (324315521), we get a palindrome (449828944).

The spelling of 125513423 in words is "one hundred twenty-five million, five hundred thirteen thousand, four hundred twenty-three".