13173455 has 4 divisors (see below), whose sum is σ = 15808152. Its totient is φ = 10538760.

The previous prime is 13173451. The next prime is 13173463. The reversal of 13173455 is 55437131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55437131 = 223 ⋅248597.

It is not a de Polignac number, because 13173455 - 2² = 13173451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13173451) 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, 1317341 + ... + 1317350.

It is an arithmetic number, because the mean of its divisors is an integer number (3952038).

Almost surely, 2^13173455 is an apocalyptic number.

13173455 is a deficient number, since it is larger than the sum of its proper divisors (2634697).

13173455 is an equidigital number, since it uses as much as digits as its factorization.

13173455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2634696.

The product of its digits is 6300, while the sum is 29.

The square root of 13173455 is about 3629.5254510748. The cubic root of 13173455 is about 236.1746229861.

The spelling of 13173455 in words is "thirteen million, one hundred seventy-three thousand, four hundred fifty-five".