189453 has 8 divisors (see below), whose sum is σ = 275616. Its totient is φ = 114800.

The previous prime is 189439. The next prime is 189463. The reversal of 189453 is 354981.

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 189453 - 2⁴ = 189437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 189453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189433) 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, 2838 + ... + 2903.

It is an arithmetic number, because the mean of its divisors is an integer number (34452).

2¹⁸⁹⁴⁵³ is an apocalyptic number.

It is an amenable number.

189453 is a deficient number, since it is larger than the sum of its proper divisors (86163).

189453 is a wasteful number, since it uses less digits than its factorization.

189453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5755.

The product of its digits is 4320, while the sum is 30.

The square root of 189453 is about 435.2619900703. The cubic root of 189453 is about 57.4337485211.

The spelling of 189453 in words is "one hundred eighty-nine thousand, four hundred fifty-three".