222746045 has 4 divisors (see below), whose sum is σ = 267295260. Its totient is φ = 178196832.

The previous prime is 222746039. The next prime is 222746081. The reversal of 222746045 is 540647222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 540647222 = 2 ⋅270323611.

It can be written as a sum of positive squares in 2 ways, for example, as 123165604 + 99580441 = 11098^2 + 9979^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222746045 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 22274600 + ... + 22274609.

It is an arithmetic number, because the mean of its divisors is an integer number (66823815).

Almost surely, 2^222746045 is an apocalyptic number.

It is an amenable number.

222746045 is a deficient number, since it is larger than the sum of its proper divisors (44549215).

222746045 is an equidigital number, since it uses as much as digits as its factorization.

222746045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44549214.

The product of its (nonzero) digits is 26880, while the sum is 32.

The square root of 222746045 is about 14924.6790585258. The cubic root of 222746045 is about 606.1824153944.

The spelling of 222746045 in words is "two hundred twenty-two million, seven hundred forty-six thousand, forty-five".