13722118 has 8 divisors (see below), whose sum is σ = 20600712. Its totient is φ = 6855216.

The previous prime is 13722103. The next prime is 13722143. The reversal of 13722118 is 81122731.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 13722092 and 13722101.

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, 1146 + ... + 5362.

It is an arithmetic number, because the mean of its divisors is an integer number (2575089).

Almost surely, 2^13722118 is an apocalyptic number.

13722118 is a deficient number, since it is larger than the sum of its proper divisors (6878594).

13722118 is a wasteful number, since it uses less digits than its factorization.

13722118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5846.

The product of its digits is 672, while the sum is 25.

The square root of 13722118 is about 3704.3377275837. The cubic root of 13722118 is about 239.4089507072.

Adding to 13722118 its reverse (81122731), we get a palindrome (94844849).

The spelling of 13722118 in words is "thirteen million, seven hundred twenty-two thousand, one hundred eighteen".