13355191 has 4 divisors (see below), whose sum is σ = 13639392. Its totient is φ = 13070992.

The previous prime is 13355161. The next prime is 13355197. The reversal of 13355191 is 19155331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19155331 = 13 ⋅1473487.

It is a cyclic number.

It is not a de Polignac number, because 13355191 - 2¹⁷ = 13224119 is a prime.

It is a super-2 number, since 2×13355191² = 356722253292962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13355197) 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, 142030 + ... + 142123.

It is an arithmetic number, because the mean of its divisors is an integer number (3409848).

Almost surely, 2^13355191 is an apocalyptic number.

13355191 is a deficient number, since it is larger than the sum of its proper divisors (284201).

13355191 is an equidigital number, since it uses as much as digits as its factorization.

13355191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284200.

The product of its digits is 2025, while the sum is 28.

The square root of 13355191 is about 3654.4754753589. The cubic root of 13355191 is about 237.2557252053.

The spelling of 13355191 in words is "thirteen million, three hundred fifty-five thousand, one hundred ninety-one".