189193 has 8 divisors (see below), whose sum is σ = 207360. Its totient is φ = 171840.

The previous prime is 189187. The next prime is 189199. The reversal of 189193 is 391981.

It is an interprime number because it is at equal distance from previous prime (189187) and next prime (189199).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 189193 - 2⁹ = 188681 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 348 + ... + 706.

It is an arithmetic number, because the mean of its divisors is an integer number (25920).

2¹⁸⁹¹⁹³ is an apocalyptic number.

It is an amenable number.

189193 is a deficient number, since it is larger than the sum of its proper divisors (18167).

189193 is a wasteful number, since it uses less digits than its factorization.

189193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407.

The product of its digits is 1944, while the sum is 31.

The square root of 189193 is about 434.9632168356. The cubic root of 189193 is about 57.4074630027.

The spelling of 189193 in words is "one hundred eighty-nine thousand, one hundred ninety-three".