222145433 has 4 divisors (see below), whose sum is σ = 224821968. Its totient is φ = 219468900.

The previous prime is 222145387. The next prime is 222145459. The reversal of 222145433 is 334541222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 222145433 - 2⁶ = 222145369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222145933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1338143 + ... + 1338308.

It is an arithmetic number, because the mean of its divisors is an integer number (56205492).

Almost surely, 2^222145433 is an apocalyptic number.

It is an amenable number.

222145433 is a deficient number, since it is larger than the sum of its proper divisors (2676535).

222145433 is an equidigital number, since it uses as much as digits as its factorization.

222145433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2676534.

The product of its digits is 5760, while the sum is 26.

The square root of 222145433 is about 14904.5440386481. The cubic root of 222145433 is about 605.6370886012.

Adding to 222145433 its reverse (334541222), we get a palindrome (556686655).

The spelling of 222145433 in words is "two hundred twenty-two million, one hundred forty-five thousand, four hundred thirty-three".