13133372 has 36 divisors (see below), whose sum is σ = 27473544. Its totient is φ = 5473440.

The previous prime is 13133371. The next prime is 13133377. The reversal of 13133372 is 27333131.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13133371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6347 + ... + 8157.

It is an arithmetic number, because the mean of its divisors is an integer number (763154).

Almost surely, 2^13133372 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 13133372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13736772).

13133372 is an abundant number, since it is smaller than the sum of its proper divisors (14340172).

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

13133372 is a wasteful number, since it uses less digits than its factorization.

13133372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1866 (or 1857 counting only the distinct ones).

The product of its digits is 1134, while the sum is 23.

The square root of 13133372 is about 3623.9994481236. Note that the first 3 decimals coincide. The cubic root of 13133372 is about 235.9348426846.

The spelling of 13133372 in words is "thirteen million, one hundred thirty-three thousand, three hundred seventy-two".