13223142 has 16 divisors (see below), whose sum is σ = 29384880. Its totient is φ = 4407696.

The previous prime is 13223123. The next prime is 13223173. The reversal of 13223142 is 24132231.

13223142 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122383 + ... + 122490.

It is an arithmetic number, because the mean of its divisors is an integer number (1836555).

Almost surely, 2^13223142 is an apocalyptic number.

13223142 is an abundant number, since it is smaller than the sum of its proper divisors (16161738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13223142 is a wasteful number, since it uses less digits than its factorization.

13223142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244884 (or 244878 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 13223142 is about 3636.3638431818. The cubic root of 13223142 is about 236.4711811210.

Adding to 13223142 its reverse (24132231), we get a palindrome (37355373).

The spelling of 13223142 in words is "thirteen million, two hundred twenty-three thousand, one hundred forty-two".