222945158 has 32 divisors (see below), whose sum is σ = 349332480. Its totient is φ = 106646400.

The previous prime is 222945143. The next prime is 222945209. The reversal of 222945158 is 851549222.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1476383 + ... + 1476533.

It is an arithmetic number, because the mean of its divisors is an integer number (10916640).

Almost surely, 2^222945158 is an apocalyptic number.

222945158 is a deficient number, since it is larger than the sum of its proper divisors (126387322).

222945158 is a wasteful number, since it uses less digits than its factorization.

222945158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452.

The product of its digits is 57600, while the sum is 38.

The square root of 222945158 is about 14931.3481641813. The cubic root of 222945158 is about 606.3629840368.

The spelling of 222945158 in words is "two hundred twenty-two million, nine hundred forty-five thousand, one hundred fifty-eight".