13330191 has 16 divisors (see below), whose sum is σ = 21382400. Its totient is φ = 7216128.

The previous prime is 13330181. The next prime is 13330199. The reversal of 13330191 is 19103331.

It is not a de Polignac number, because 13330191 - 2⁶ = 13330127 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13330199) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16306 + ... + 17103.

It is an arithmetic number, because the mean of its divisors is an integer number (1336400).

Almost surely, 2^13330191 is an apocalyptic number.

13330191 is a deficient number, since it is larger than the sum of its proper divisors (8052209).

13330191 is a wasteful number, since it uses less digits than its factorization.

13330191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33438.

The product of its (nonzero) digits is 243, while the sum is 21.

The square root of 13330191 is about 3651.0534096340. The cubic root of 13330191 is about 237.1075905951.

The spelling of 13330191 in words is "thirteen million, three hundred thirty thousand, one hundred ninety-one".