13198423 has 4 divisors (see below), whose sum is σ = 15083920. Its totient is φ = 11312928.

The previous prime is 13198379. The next prime is 13198429. The reversal of 13198423 is 32489131.

13198423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13198423 - 2¹³ = 13190231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13198429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 942738 + ... + 942751.

It is an arithmetic number, because the mean of its divisors is an integer number (3770980).

Almost surely, 2^13198423 is an apocalyptic number.

13198423 is a deficient number, since it is larger than the sum of its proper divisors (1885497).

13198423 is an equidigital number, since it uses as much as digits as its factorization.

13198423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1885496.

The product of its digits is 5184, while the sum is 31.

The square root of 13198423 is about 3632.9633909524. The cubic root of 13198423 is about 236.3237381687.

The spelling of 13198423 in words is "thirteen million, one hundred ninety-eight thousand, four hundred twenty-three".