13214455 has 4 divisors (see below), whose sum is σ = 15857352. Its totient is φ = 10571560.

The previous prime is 13214447. The next prime is 13214471. The reversal of 13214455 is 55441231.

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: 55441231 = 347 ⋅159773.

It is not a de Polignac number, because 13214455 - 2³ = 13214447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1321441 + ... + 1321450.

It is an arithmetic number, because the mean of its divisors is an integer number (3964338).

Almost surely, 2^13214455 is an apocalyptic number.

13214455 is a deficient number, since it is larger than the sum of its proper divisors (2642897).

13214455 is an equidigital number, since it uses as much as digits as its factorization.

13214455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2642896.

The product of its digits is 2400, while the sum is 25.

The square root of 13214455 is about 3635.1691845085. The cubic root of 13214455 is about 236.4193861906.

Adding to 13214455 its reverse (55441231), we get a palindrome (68655686).

It can be divided in two parts, 1321 and 4455, that added together give a square (5776 = 76²).

The spelling of 13214455 in words is "thirteen million, two hundred fourteen thousand, four hundred fifty-five".