13933091 has 4 divisors (see below), whose sum is σ = 13973592. Its totient is φ = 13892592.

The previous prime is 13933067. The next prime is 13933109. The reversal of 13933091 is 19033931.

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 13933091 - 2¹⁰ = 13932067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13933001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19730 + ... + 20423.

It is an arithmetic number, because the mean of its divisors is an integer number (3493398).

Almost surely, 2^13933091 is an apocalyptic number.

13933091 is a deficient number, since it is larger than the sum of its proper divisors (40501).

13933091 is an equidigital number, since it uses as much as digits as its factorization.

13933091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40500.

The product of its (nonzero) digits is 2187, while the sum is 29.

The square root of 13933091 is about 3732.7055871043. The cubic root of 13933091 is about 240.6296602459.

The spelling of 13933091 in words is "thirteen million, nine hundred thirty-three thousand, ninety-one".