22232145 has 32 divisors (see below), whose sum is σ = 39981312. Its totient is φ = 10467072.

The previous prime is 22232143. The next prime is 22232167. The reversal of 22232145 is 54123222.

It is not a de Polignac number, because 22232145 - 2¹ = 22232143 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22232143) 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, 2007 + ... + 6963.

It is an arithmetic number, because the mean of its divisors is an integer number (1249416).

Almost surely, 2^22232145 is an apocalyptic number.

It is an amenable number.

22232145 is a deficient number, since it is larger than the sum of its proper divisors (17749167).

22232145 is a wasteful number, since it uses less digits than its factorization.

22232145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5001.

The product of its digits is 960, while the sum is 21.

The square root of 22232145 is about 4715.0975599663. The cubic root of 22232145 is about 281.1860615149.

Adding to 22232145 its reverse (54123222), we get a palindrome (76355367).

The spelling of 22232145 in words is "twenty-two million, two hundred thirty-two thousand, one hundred forty-five".