189494 has 4 divisors (see below), whose sum is σ = 284244. Its totient is φ = 94746.

The previous prime is 189493. The next prime is 189509. The reversal of 189494 is 494981.

189494 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 494981 = 137 ⋅3613.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47372 + ... + 47375.

It is an arithmetic number, because the mean of its divisors is an integer number (71061).

2¹⁸⁹⁴⁹⁴ is an apocalyptic number.

189494 is a deficient number, since it is larger than the sum of its proper divisors (94750).

189494 is an equidigital number, since it uses as much as digits as its factorization.

189494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94749.

The product of its digits is 10368, while the sum is 35.

The square root of 189494 is about 435.3090855932. The cubic root of 189494 is about 57.4378913496.

The spelling of 189494 in words is "one hundred eighty-nine thousand, four hundred ninety-four".