189222554 has 8 divisors (see below), whose sum is σ = 285320448. Its totient is φ = 94115740.

The previous prime is 189222493. The next prime is 189222569. The reversal of 189222554 is 455222981.

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

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, 247292 + ... + 248055.

It is an arithmetic number, because the mean of its divisors is an integer number (35665056).

Almost surely, 2^189222554 is an apocalyptic number.

189222554 is a deficient number, since it is larger than the sum of its proper divisors (96097894).

189222554 is a wasteful number, since it uses less digits than its factorization.

189222554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495540.

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

The square root of 189222554 is about 13755.8189141905. The cubic root of 189222554 is about 574.1045207003.

The spelling of 189222554 in words is "one hundred eighty-nine million, two hundred twenty-two thousand, five hundred fifty-four".