13191612 has 48 divisors (see below), whose sum is σ = 35562240. Its totient is φ = 3727872.

The previous prime is 13191601. The next prime is 13191613. The reversal of 13191612 is 21619131.

13191612 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13191613) 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, 7339 + ... + 8957.

It is an arithmetic number, because the mean of its divisors is an integer number (740880).

Almost surely, 2^13191612 is an apocalyptic number.

13191612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13191612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17781120).

13191612 is an abundant number, since it is smaller than the sum of its proper divisors (22370628).

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

13191612 is a wasteful number, since it uses less digits than its factorization.

13191612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1730 (or 1728 counting only the distinct ones).

The product of its digits is 324, while the sum is 24.

The square root of 13191612 is about 3632.0258809651. The cubic root of 13191612 is about 236.2830798281.

The spelling of 13191612 in words is "thirteen million, one hundred ninety-one thousand, six hundred twelve".