222504145 has 8 divisors (see below), whose sum is σ = 273214656. Its totient is φ = 173863536.

The previous prime is 222504137. The next prime is 222504167. The reversal of 222504145 is 541405222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 222504145 - 2³ = 222504137 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 517237 + ... + 517666.

It is an arithmetic number, because the mean of its divisors is an integer number (34151832).

Almost surely, 2^222504145 is an apocalyptic number.

It is an amenable number.

222504145 is a deficient number, since it is larger than the sum of its proper divisors (50710511).

222504145 is a wasteful number, since it uses less digits than its factorization.

222504145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034951.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 222504145 is about 14916.5728302449. The cubic root of 222504145 is about 605.9628998770.

Adding to 222504145 its reverse (541405222), we get a palindrome (763909367).

The spelling of 222504145 in words is "two hundred twenty-two million, five hundred four thousand, one hundred forty-five".