22145835 has 16 divisors (see below), whose sum is σ = 35511840. Its totient is φ = 11784960.

The previous prime is 22145831. The next prime is 22145843. The reversal of 22145835 is 53854122.

It is not a de Polignac number, because 22145835 - 2² = 22145831 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22145831) 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, 6751 + ... + 9479.

It is an arithmetic number, because the mean of its divisors is an integer number (2219490).

Almost surely, 2^22145835 is an apocalyptic number.

22145835 is a deficient number, since it is larger than the sum of its proper divisors (13366005).

22145835 is a wasteful number, since it uses less digits than its factorization.

22145835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3278.

The product of its digits is 9600, while the sum is 30.

The square root of 22145835 is about 4705.9361449131. The cubic root of 22145835 is about 280.8217145609.

Adding to 22145835 its reverse (53854122), we get a palindrome (75999957).

It can be divided in two parts, 221 and 45835, that added together give a triangular number (46056 = T₃₀₃).

The spelling of 22145835 in words is "twenty-two million, one hundred forty-five thousand, eight hundred thirty-five".