22145043 has 32 divisors (see below), whose sum is σ = 31933440. Its totient is φ = 13628160.

The previous prime is 22145029. The next prime is 22145059. The reversal of 22145043 is 34054122.

It is not a de Polignac number, because 22145043 - 2⁴ = 22145027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22145243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 280278 + ... + 280356.

It is an arithmetic number, because the mean of its divisors is an integer number (997920).

Almost surely, 2^22145043 is an apocalyptic number.

22145043 is a deficient number, since it is larger than the sum of its proper divisors (9788397).

22145043 is a wasteful number, since it uses less digits than its factorization.

22145043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219.

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

The square root of 22145043 is about 4705.8519951227. The cubic root of 22145043 is about 280.8183668516.

Adding to 22145043 its reverse (34054122), we get a palindrome (56199165).

The spelling of 22145043 in words is "twenty-two million, one hundred forty-five thousand, forty-three".