13235121 has 12 divisors (see below), whose sum is σ = 19174272. Its totient is φ = 8797176.

The previous prime is 13235093. The next prime is 13235147. The reversal of 13235121 is 12153231.

It is not a de Polignac number, because 13235121 - 2⁹ = 13234609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13235094 and 13235103.

It is not an unprimeable number, because it can be changed into a prime (13235161) 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, 1300 + ... + 5306.

It is an arithmetic number, because the mean of its divisors is an integer number (1597856).

Almost surely, 2^13235121 is an apocalyptic number.

It is an amenable number.

13235121 is a deficient number, since it is larger than the sum of its proper divisors (5939151).

13235121 is a wasteful number, since it uses less digits than its factorization.

13235121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4380 (or 4377 counting only the distinct ones).

The product of its digits is 180, while the sum is 18.

The square root of 13235121 is about 3638.0105827224. The cubic root of 13235121 is about 236.5425669112.

Adding to 13235121 its reverse (12153231), we get a palindrome (25388352).

It can be divided in two parts, 132 and 35121, that added together give a palindrome (35253).

The spelling of 13235121 in words is "thirteen million, two hundred thirty-five thousand, one hundred twenty-one".