222892645 has 4 divisors (see below), whose sum is σ = 267471180. Its totient is φ = 178314112.

The previous prime is 222892603. The next prime is 222892651. The reversal of 222892645 is 546298222.

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 117029124 + 105863521 = 10818^2 + 10289^2 .

It is a cyclic number.

It is not a de Polignac number, because 222892645 - 2⁹ = 222892133 is a prime.

It is a super-2 number, since 2×222892645² = 99362262390192050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222892598 and 222892607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22289260 + ... + 22289269.

It is an arithmetic number, because the mean of its divisors is an integer number (66867795).

Almost surely, 2^222892645 is an apocalyptic number.

It is an amenable number.

222892645 is a deficient number, since it is larger than the sum of its proper divisors (44578535).

222892645 is an equidigital number, since it uses as much as digits as its factorization.

222892645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44578534.

The product of its digits is 138240, while the sum is 40.

The square root of 222892645 is about 14929.5895790876. The cubic root of 222892645 is about 606.3153722683.

The spelling of 222892645 in words is "two hundred twenty-two million, eight hundred ninety-two thousand, six hundred forty-five".