189113794 has 4 divisors (see below), whose sum is σ = 283670694. Its totient is φ = 94556896.

The previous prime is 189113791. The next prime is 189113803. The reversal of 189113794 is 497311981.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 147987225 + 41126569 = 12165^2 + 6413^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 189113794.

It is not an unprimeable number, because it can be changed into a prime (189113791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47278447 + ... + 47278450.

Almost surely, 2^189113794 is an apocalyptic number.

189113794 is a deficient number, since it is larger than the sum of its proper divisors (94556900).

189113794 is an equidigital number, since it uses as much as digits as its factorization.

189113794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94556899.

The product of its digits is 54432, while the sum is 43.

The square root of 189113794 is about 13751.8651098678. The cubic root of 189113794 is about 573.9945063758.

The spelling of 189113794 in words is "one hundred eighty-nine million, one hundred thirteen thousand, seven hundred ninety-four".