13135236 has 12 divisors (see below), whose sum is σ = 30648912. Its totient is φ = 4378408.

The previous prime is 13135217. The next prime is 13135247. The reversal of 13135236 is 63253131.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 547290 + ... + 547313.

It is an arithmetic number, because the mean of its divisors is an integer number (2554076).

Almost surely, 2^13135236 is an apocalyptic number.

It is an amenable number.

13135236 is an abundant number, since it is smaller than the sum of its proper divisors (17513676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13135236 is a wasteful number, since it uses less digits than its factorization.

13135236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094610 (or 1094608 counting only the distinct ones).

The product of its digits is 1620, while the sum is 24.

The square root of 13135236 is about 3624.2566134312. The cubic root of 13135236 is about 235.9460041173.

Adding to 13135236 its reverse (63253131), we get a palindrome (76388367).

The spelling of 13135236 in words is "thirteen million, one hundred thirty-five thousand, two hundred thirty-six".