13455193 has 4 divisors (see below), whose sum is σ = 13473460. Its totient is φ = 13436928.

The previous prime is 13455191. The next prime is 13455223. The reversal of 13455193 is 39155431.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39155431 = 7 ⋅5593633.

It can be written as a sum of positive squares in 2 ways, for example, as 1710864 + 11744329 = 1308^2 + 3427^2 .

It is a 8-Lehmer number, since φ(13455193) divides (13455193-1)⁸.

It is a cyclic number.

It is not a de Polignac number, because 13455193 - 2¹ = 13455191 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13455191) 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, 7980 + ... + 9517.

It is an arithmetic number, because the mean of its divisors is an integer number (3368365).

Almost surely, 2^13455193 is an apocalyptic number.

It is an amenable number.

13455193 is a deficient number, since it is larger than the sum of its proper divisors (18267).

13455193 is an equidigital number, since it uses as much as digits as its factorization.

13455193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18266.

The product of its digits is 8100, while the sum is 31.

The square root of 13455193 is about 3668.1320859533. The cubic root of 13455193 is about 237.8464336654.

The spelling of 13455193 in words is "thirteen million, four hundred fifty-five thousand, one hundred ninety-three".