189829345 has 4 divisors (see below), whose sum is σ = 227795220. Its totient is φ = 151863472.

The previous prime is 189829333. The next prime is 189829357. The reversal of 189829345 is 543928981.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 543928981 = 67 ⋅8118343.

It is an interprime number because it is at equal distance from previous prime (189829333) and next prime (189829357).

It can be written as a sum of positive squares in 2 ways, for example, as 104673361 + 85155984 = 10231^2 + 9228^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189829345 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18982930 + ... + 18982939.

It is an arithmetic number, because the mean of its divisors is an integer number (56948805).

Almost surely, 2^189829345 is an apocalyptic number.

It is an amenable number.

189829345 is a deficient number, since it is larger than the sum of its proper divisors (37965875).

189829345 is an equidigital number, since it uses as much as digits as its factorization.

189829345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37965874.

The product of its digits is 622080, while the sum is 49.

The square root of 189829345 is about 13777.8570539834. The cubic root of 189829345 is about 574.7175373844.

The spelling of 189829345 in words is "one hundred eighty-nine million, eight hundred twenty-nine thousand, three hundred forty-five".