189849223 has 2 divisors, whose sum is σ = 189849224. Its totient is φ = 189849222.

The previous prime is 189849173. The next prime is 189849259. The reversal of 189849223 is 322948981.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189849223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189849823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94924611 + 94924612.

It is an arithmetic number, because the mean of its divisors is an integer number (94924612).

Almost surely, 2^189849223 is an apocalyptic number.

189849223 is a deficient number, since it is larger than the sum of its proper divisors (1).

189849223 is an equidigital number, since it uses as much as digits as its factorization.

189849223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 46.

The square root of 189849223 is about 13778.5784099812. The cubic root of 189849223 is about 574.7375972202.

The spelling of 189849223 in words is "one hundred eighty-nine million, eight hundred forty-nine thousand, two hundred twenty-three".