189223775 has 12 divisors (see below), whose sum is σ = 252686952. Its totient is φ = 139734240.

The previous prime is 189223747. The next prime is 189223781. The reversal of 189223775 is 577322981.

It is not a de Polignac number, because 189223775 - 2¹⁴ = 189207391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 290789 + ... + 291438.

It is an arithmetic number, because the mean of its divisors is an integer number (21057246).

Almost surely, 2^189223775 is an apocalyptic number.

189223775 is a deficient number, since it is larger than the sum of its proper divisors (63463177).

189223775 is a wasteful number, since it uses less digits than its factorization.

189223775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582250 (or 582245 counting only the distinct ones).

The product of its digits is 211680, while the sum is 44.

The square root of 189223775 is about 13755.8632953370. The cubic root of 189223775 is about 574.1057555427.

The spelling of 189223775 in words is "one hundred eighty-nine million, two hundred twenty-three thousand, seven hundred seventy-five".