222295945 has 4 divisors (see below), whose sum is σ = 266755140. Its totient is φ = 177836752.

The previous prime is 222295921. The next prime is 222295949. The reversal of 222295945 is 549592222.

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 100480576 + 121815369 = 10024^2 + 11037^2 .

It is a cyclic number.

It is not a de Polignac number, because 222295945 - 2¹⁹ = 221771657 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222295898 and 222295907.

It is not an unprimeable number, because it can be changed into a prime (222295949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22229590 + ... + 22229599.

It is an arithmetic number, because the mean of its divisors is an integer number (66688785).

Almost surely, 2^222295945 is an apocalyptic number.

It is an amenable number.

222295945 is a deficient number, since it is larger than the sum of its proper divisors (44459195).

222295945 is an equidigital number, since it uses as much as digits as its factorization.

222295945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44459194.

The product of its digits is 129600, while the sum is 40.

The square root of 222295945 is about 14909.5923820874. The cubic root of 222295945 is about 605.7738384605.

The spelling of 222295945 in words is "two hundred twenty-two million, two hundred ninety-five thousand, nine hundred forty-five".