13261236 has 48 divisors (see below), whose sum is σ = 32659200. Its totient is φ = 4181632.

The previous prime is 13261231. The next prime is 13261277. The reversal of 13261236 is 63216231.

It is a happy number.

13261236 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13261231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18085 + ... + 18803.

It is an arithmetic number, because the mean of its divisors is an integer number (680400).

Almost surely, 2^13261236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13261236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16329600).

13261236 is an abundant number, since it is smaller than the sum of its proper divisors (19397964).

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

13261236 is a wasteful number, since it uses less digits than its factorization.

13261236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808 (or 806 counting only the distinct ones).

The product of its digits is 1296, while the sum is 24.

The square root of 13261236 is about 3641.5980008782. The cubic root of 13261236 is about 236.6980434055.

Adding to 13261236 its reverse (63216231), we get a palindrome (76477467).

The spelling of 13261236 in words is "thirteen million, two hundred sixty-one thousand, two hundred thirty-six".