22156134 has 192 divisors, whose sum is σ = 66189312. Its totient is φ = 4838400.

The previous prime is 22156133. The next prime is 22156139. The reversal of 22156134 is 43165122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22156133) 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 95 ways as a sum of consecutive naturals, for example, 714699 + ... + 714729.

It is an arithmetic number, because the mean of its divisors is an integer number (344736).

Almost surely, 2^22156134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22156134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33094656).

22156134 is an abundant number, since it is smaller than the sum of its proper divisors (44033178).

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

22156134 is a wasteful number, since it uses less digits than its factorization.

22156134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91 (or 84 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 22156134 is about 4707.0302739626. The cubic root of 22156134 is about 280.8652401962.

The spelling of 22156134 in words is "twenty-two million, one hundred fifty-six thousand, one hundred thirty-four".