189630299 has 2 divisors, whose sum is σ = 189630300. Its totient is φ = 189630298.

The previous prime is 189630271. The next prime is 189630319. The reversal of 189630299 is 992036981.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189630299 is a prime.

It is not a weakly prime, because it can be changed into another prime (189636299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94815149 + 94815150.

It is an arithmetic number, because the mean of its divisors is an integer number (94815150).

Almost surely, 2^189630299 is an apocalyptic number.

189630299 is a deficient number, since it is larger than the sum of its proper divisors (1).

189630299 is an equidigital number, since it uses as much as digits as its factorization.

189630299 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209952, while the sum is 47.

The square root of 189630299 is about 13770.6317574758. The cubic root of 189630299 is about 574.5165933323.

The spelling of 189630299 in words is "one hundred eighty-nine million, six hundred thirty thousand, two hundred ninety-nine".