222404145 has 16 divisors (see below), whose sum is σ = 359113920. Its totient is φ = 117526464.

The previous prime is 222404111. The next prime is 222404173. The reversal of 222404145 is 541404222.

It is a happy number.

It is not a de Polignac number, because 222404145 - 2¹¹ = 222402097 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66379 + ... + 69648.

It is an arithmetic number, because the mean of its divisors is an integer number (22444620).

Almost surely, 2^222404145 is an apocalyptic number.

It is an amenable number.

222404145 is a deficient number, since it is larger than the sum of its proper divisors (136709775).

222404145 is a wasteful number, since it uses less digits than its factorization.

222404145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136144.

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 222404145 is about 14913.2204771471. The cubic root of 222404145 is about 605.8721070064.

Adding to 222404145 its reverse (541404222), we get a palindrome (763808367).

The spelling of 222404145 in words is "two hundred twenty-two million, four hundred four thousand, one hundred forty-five".