22513134 has 32 divisors (see below), whose sum is σ = 54487296. Its totient is φ = 6053760.

The previous prime is 22513133. The next prime is 22513147. The reversal of 22513134 is 43131522.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 22513134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22513133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15052 + ... + 16479.

It is an arithmetic number, because the mean of its divisors is an integer number (1702728).

Almost surely, 2^22513134 is an apocalyptic number.

22513134 is an abundant number, since it is smaller than the sum of its proper divisors (31974162).

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

22513134 is a wasteful number, since it uses less digits than its factorization.

22513134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31560.

The product of its digits is 720, while the sum is 21.

The square root of 22513134 is about 4744.8007334344. The cubic root of 22513134 is about 282.3657293891.

Adding to 22513134 its reverse (43131522), we get a palindrome (65644656).

The spelling of 22513134 in words is "twenty-two million, five hundred thirteen thousand, one hundred thirty-four".