22613136 has 160 divisors (see below), whose sum is σ = 74661888. Its totient is φ = 5736960.

The previous prime is 22613131. The next prime is 22613159. The reversal of 22613136 is 63131622.

It is a happy number.

It is a super-2 number, since 2×22613136² = 1022707839508992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22613131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135325 + ... + 135491.

Almost surely, 2^22613136 is an apocalyptic number.

22613136 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22613136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37330944).

22613136 is an abundant number, since it is smaller than the sum of its proper divisors (52048752).

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

22613136 is a wasteful number, since it uses less digits than its factorization.

22613136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229 (or 223 counting only the distinct ones).

The product of its digits is 1296, while the sum is 24.

The square root of 22613136 is about 4755.3271180856. The cubic root of 22613136 is about 282.7831957936.

Adding to 22613136 its reverse (63131622), we get a palindrome (85744758).

The spelling of 22613136 in words is "twenty-two million, six hundred thirteen thousand, one hundred thirty-six".