22155134 has 4 divisors (see below), whose sum is σ = 33232704. Its totient is φ = 11077566.

The previous prime is 22155127. The next prime is 22155137. The reversal of 22155134 is 43155122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43155122 = 2 ⋅21577561.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22155137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5538782 + ... + 5538785.

It is an arithmetic number, because the mean of its divisors is an integer number (8308176).

Almost surely, 2^22155134 is an apocalyptic number.

22155134 is a deficient number, since it is larger than the sum of its proper divisors (11077570).

22155134 is a wasteful number, since it uses less digits than its factorization.

22155134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11077569.

The product of its digits is 1200, while the sum is 23.

The square root of 22155134 is about 4706.9240486755. The cubic root of 22155134 is about 280.8610145874.

It can be divided in two parts, 221 and 55134, that added together give a palindrome (55355).

The spelling of 22155134 in words is "twenty-two million, one hundred fifty-five thousand, one hundred thirty-four".