22135161 has 4 divisors (see below), whose sum is σ = 29513552. Its totient is φ = 14756772.

The previous prime is 22135103. The next prime is 22135163. The reversal of 22135161 is 16153122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 22135161 - 2⁶ = 22135097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22135163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3689191 + ... + 3689196.

It is an arithmetic number, because the mean of its divisors is an integer number (7378388).

Almost surely, 2^22135161 is an apocalyptic number.

It is an amenable number.

22135161 is a deficient number, since it is larger than the sum of its proper divisors (7378391).

22135161 is an equidigital number, since it uses as much as digits as its factorization.

22135161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7378390.

The product of its digits is 360, while the sum is 21.

The square root of 22135161 is about 4704.8019086886. The cubic root of 22135161 is about 280.7765898577.

Adding to 22135161 its reverse (16153122), we get a palindrome (38288283).

The spelling of 22135161 in words is "twenty-two million, one hundred thirty-five thousand, one hundred sixty-one".