222023154 has 16 divisors (see below), whose sum is σ = 444873600. Its totient is φ = 73869840.

The previous prime is 222023143. The next prime is 222023161. The reversal of 222023154 is 451320222.

It is a self number, because there is not a number n which added to its sum of digits gives 222023154.

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, 30954 + ... + 37445.

It is an arithmetic number, because the mean of its divisors is an integer number (27804600).

Almost surely, 2^222023154 is an apocalyptic number.

222023154 is an abundant number, since it is smaller than the sum of its proper divisors (222850446).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222023154 is a wasteful number, since it uses less digits than its factorization.

222023154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68945.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 222023154 is about 14900.4414028578. The cubic root of 222023154 is about 605.5259447606.

Adding to 222023154 its reverse (451320222), we get a palindrome (673343376).

The spelling of 222023154 in words is "two hundred twenty-two million, twenty-three thousand, one hundred fifty-four".