13919193 has 12 divisors (see below), whose sum is σ = 20140848. Its totient is φ = 9263160.

The previous prime is 13919179. The next prime is 13919197. The reversal of 13919193 is 39191931.

It is not a de Polignac number, because 13919193 - 2⁴ = 13919177 is a prime.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (13919197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6346 + ... + 8252.

It is an arithmetic number, because the mean of its divisors is an integer number (1678404).

Almost surely, 2^13919193 is an apocalyptic number.

It is an amenable number.

13919193 is a deficient number, since it is larger than the sum of its proper divisors (6221655).

13919193 is a wasteful number, since it uses less digits than its factorization.

13919193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2724 (or 2721 counting only the distinct ones).

The product of its digits is 6561, while the sum is 36.

The square root of 13919193 is about 3730.8434703161. The cubic root of 13919193 is about 240.5496257539.

The spelling of 13919193 in words is "thirteen million, nine hundred nineteen thousand, one hundred ninety-three".