13419121 has 4 divisors (see below), whose sum is σ = 13475044. Its totient is φ = 13363200.

The previous prime is 13419113. The next prime is 13419127. The reversal of 13419121 is 12191431.

It is the 1496-th star number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8179600 + 5239521 = 2860^2 + 2289^2 .

It is a cyclic number.

It is not a de Polignac number, because 13419121 - 2³ = 13419113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13419092 and 13419101.

It is not an unprimeable number, because it can be changed into a prime (13419127) 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, 27600 + ... + 28081.

It is an arithmetic number, because the mean of its divisors is an integer number (3368761).

Almost surely, 2^13419121 is an apocalyptic number.

It is an amenable number.

13419121 is a deficient number, since it is larger than the sum of its proper divisors (55923).

13419121 is an equidigital number, since it uses as much as digits as its factorization.

13419121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55922.

The product of its digits is 216, while the sum is 22.

The square root of 13419121 is about 3663.2118420861. The cubic root of 13419121 is about 237.6336961000.

The spelling of 13419121 in words is "thirteen million, four hundred nineteen thousand, one hundred twenty-one".