22435145 has 4 divisors (see below), whose sum is σ = 26922180. Its totient is φ = 17948112.

The previous prime is 22435141. The next prime is 22435177. The reversal of 22435145 is 54153422.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8922169 + 13512976 = 2987^2 + 3676^2 .

It is a cyclic number.

It is not a de Polignac number, because 22435145 - 2² = 22435141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22435141) 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, 2243510 + ... + 2243519.

It is an arithmetic number, because the mean of its divisors is an integer number (6730545).

Almost surely, 2^22435145 is an apocalyptic number.

It is an amenable number.

22435145 is a deficient number, since it is larger than the sum of its proper divisors (4487035).

22435145 is an equidigital number, since it uses as much as digits as its factorization.

22435145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4487034.

The product of its digits is 4800, while the sum is 26.

The square root of 22435145 is about 4736.5752395586. The cubic root of 22435145 is about 282.0392992193.

Adding to 22435145 its reverse (54153422), we get a palindrome (76588567).

The spelling of 22435145 in words is "twenty-two million, four hundred thirty-five thousand, one hundred forty-five".