135225123 has 36 divisors (see below), whose sum is σ = 210687960. Its totient is φ = 77073920.

The previous prime is 135225113. The next prime is 135225149. The reversal of 135225123 is 321522531.

It is a happy number.

135225123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 135225123 - 2⁴ = 135225107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 135225093 and 135225102.

It is not an unprimeable number, because it can be changed into a prime (135225113) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 104263 + ... + 105551.

Almost surely, 2^135225123 is an apocalyptic number.

135225123 is a deficient number, since it is larger than the sum of its proper divisors (75462837).

135225123 is a wasteful number, since it uses less digits than its factorization.

135225123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348 (or 1320 counting only the distinct ones).

The product of its digits is 1800, while the sum is 24.

The square root of 135225123 is about 11628.6337546592. The cubic root of 135225123 is about 513.2777774343.

Adding to 135225123 its reverse (321522531), we get a palindrome (456747654).

The spelling of 135225123 in words is "one hundred thirty-five million, two hundred twenty-five thousand, one hundred twenty-three".