13113198 has 64 divisors (see below), whose sum is σ = 33707520. Its totient is φ = 3701376.

The previous prime is 13113181. The next prime is 13113223. The reversal of 13113198 is 89131131.

It is a happy number.

13113198 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 hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42561 + ... + 42867.

It is an arithmetic number, because the mean of its divisors is an integer number (526680).

Almost surely, 2^13113198 is an apocalyptic number.

13113198 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13113198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16853760).

13113198 is an abundant number, since it is smaller than the sum of its proper divisors (20594322).

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

13113198 is a wasteful number, since it uses less digits than its factorization.

13113198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438 (or 432 counting only the distinct ones).

The product of its digits is 648, while the sum is 27.

The square root of 13113198 is about 3621.2149894752. The cubic root of 13113198 is about 235.8139753062.

The spelling of 13113198 in words is "thirteen million, one hundred thirteen thousand, one hundred ninety-eight".