22135477 has 16 divisors (see below), whose sum is σ = 27361152. Its totient is φ = 17438400.

The previous prime is 22135459. The next prime is 22135481. The reversal of 22135477 is 77453122.

It is not a de Polignac number, because 22135477 - 2¹⁵ = 22102709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22135417) 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, 31227 + ... + 31927.

It is an arithmetic number, because the mean of its divisors is an integer number (1710072).

Almost surely, 2^22135477 is an apocalyptic number.

It is an amenable number.

22135477 is a deficient number, since it is larger than the sum of its proper divisors (5225675).

22135477 is a wasteful number, since it uses less digits than its factorization.

22135477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068.

The product of its digits is 11760, while the sum is 31.

The square root of 22135477 is about 4704.8354912792. The cubic root of 22135477 is about 280.7779259669. Note that the first 3 decimals are identical.

Adding to 22135477 its reverse (77453122), we get a palindrome (99588599).

The spelling of 22135477 in words is "twenty-two million, one hundred thirty-five thousand, four hundred seventy-seven".