13500222 has 16 divisors (see below), whose sum is σ = 28421760. Its totient is φ = 4263192.

The previous prime is 13500211. The next prime is 13500259. The reversal of 13500222 is 22200531.

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, 59098 + ... + 59325.

It is an arithmetic number, because the mean of its divisors is an integer number (1776360).

Almost surely, 2^13500222 is an apocalyptic number.

13500222 is an abundant number, since it is smaller than the sum of its proper divisors (14921538).

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

13500222 is a wasteful number, since it uses less digits than its factorization.

13500222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118447.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 13500222 is about 3674.2648244241. The cubic root of 13500222 is about 238.1114629845. Note that the first 3 decimals are identical.

Adding to 13500222 its reverse (22200531), we get a palindrome (35700753).

The spelling of 13500222 in words is "thirteen million, five hundred thousand, two hundred twenty-two".