22144013 has 8 divisors (see below), whose sum is σ = 24203520. Its totient is φ = 20168640.

The previous prime is 22144007. The next prime is 22144021. The reversal of 22144013 is 31044122.

22144013 = T₃₉₂ + T₃₉₃ + ... + T₅₇₇.

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

It is a cyclic number.

It is not a de Polignac number, because 22144013 - 2⁴ = 22143997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22143982 and 22144000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22144813) 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 7 ways as a sum of consecutive naturals, for example, 20483 + ... + 21536.

It is an arithmetic number, because the mean of its divisors is an integer number (3025440).

Almost surely, 2^22144013 is an apocalyptic number.

It is an amenable number.

22144013 is a deficient number, since it is larger than the sum of its proper divisors (2059507).

22144013 is a wasteful number, since it uses less digits than its factorization.

22144013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42067.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 22144013 is about 4705.7425556441. The cubic root of 22144013 is about 280.8140130195.

Adding to 22144013 its reverse (31044122), we get a palindrome (53188135).

The spelling of 22144013 in words is "twenty-two million, one hundred forty-four thousand, thirteen".