13722045 has 16 divisors (see below), whose sum is σ = 22070400. Its totient is φ = 7280064.

The previous prime is 13722019. The next prime is 13722067. The reversal of 13722045 is 54022731.

It is not a de Polignac number, because 13722045 - 2⁸ = 13721789 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 687 + ... + 5283.

It is an arithmetic number, because the mean of its divisors is an integer number (1379400).

Almost surely, 2^13722045 is an apocalyptic number.

13722045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13722045 is a deficient number, since it is larger than the sum of its proper divisors (8348355).

13722045 is a wasteful number, since it uses less digits than its factorization.

13722045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4804.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 13722045 is about 3704.3278742574. The cubic root of 13722045 is about 239.4085261643.

Adding to 13722045 its reverse (54022731), we get a palindrome (67744776).

The spelling of 13722045 in words is "thirteen million, seven hundred twenty-two thousand, forty-five".