135321125 has 16 divisors (see below), whose sum is σ = 170928576. Its totient is φ = 106944400.

The previous prime is 135321103. The next prime is 135321149. The reversal of 135321125 is 521123531.

It is a happy number.

It is not a de Polignac number, because 135321125 - 2⁶ = 135321061 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135321125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3854 + ... + 16896.

It is an arithmetic number, because the mean of its divisors is an integer number (10683036).

Almost surely, 2^135321125 is an apocalyptic number.

It is an amenable number.

135321125 is a deficient number, since it is larger than the sum of its proper divisors (35607451).

135321125 is an equidigital number, since it uses as much as digits as its factorization.

135321125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13141 (or 13131 counting only the distinct ones).

The product of its digits is 900, while the sum is 23.

The square root of 135321125 is about 11632.7608502883. The cubic root of 135321125 is about 513.3992145257.

Adding to 135321125 its reverse (521123531), we get a palindrome (656444656).

The spelling of 135321125 in words is "one hundred thirty-five million, three hundred twenty-one thousand, one hundred twenty-five".