13192421 has 8 divisors (see below), whose sum is σ = 14421888. Its totient is φ = 11968000.

The previous prime is 13192397. The next prime is 13192423. The reversal of 13192421 is 12429131.

13192421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-13192421 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 (13192423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6116 + ... + 7986.

It is an arithmetic number, because the mean of its divisors is an integer number (1802736).

Almost surely, 2^13192421 is an apocalyptic number.

13192421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13192421 is a deficient number, since it is larger than the sum of its proper divisors (1229467).

13192421 is a wasteful number, since it uses less digits than its factorization.

13192421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2523.

The product of its digits is 432, while the sum is 23.

The square root of 13192421 is about 3632.1372496094. The cubic root of 13192421 is about 236.2879098949.

The spelling of 13192421 in words is "thirteen million, one hundred ninety-two thousand, four hundred twenty-one".