189820363 has 2 divisors, whose sum is σ = 189820364. Its totient is φ = 189820362.

The previous prime is 189820333. The next prime is 189820373. The reversal of 189820363 is 363028981.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189820363 is a prime.

It is not a weakly prime, because it can be changed into another prime (189820303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94910181 + 94910182.

It is an arithmetic number, because the mean of its divisors is an integer number (94910182).

Almost surely, 2^189820363 is an apocalyptic number.

189820363 is a deficient number, since it is larger than the sum of its proper divisors (1).

189820363 is an equidigital number, since it uses as much as digits as its factorization.

189820363 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 189820363 is about 13777.5310923256. The cubic root of 189820363 is about 574.7084727614.

The spelling of 189820363 in words is "one hundred eighty-nine million, eight hundred twenty thousand, three hundred sixty-three".