189455 has 8 divisors (see below), whose sum is σ = 259872. Its totient is φ = 129888.

The previous prime is 189439. The next prime is 189463. The reversal of 189455 is 554981.

189455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 189455 - 2⁴ = 189439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2672 + ... + 2741.

It is an arithmetic number, because the mean of its divisors is an integer number (32484).

2¹⁸⁹⁴⁵⁵ is an apocalyptic number.

189455 is a deficient number, since it is larger than the sum of its proper divisors (70417).

189455 is an equidigital number, since it uses as much as digits as its factorization.

189455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5425.

The product of its digits is 7200, while the sum is 32.

The square root of 189455 is about 435.2642875312. The cubic root of 189455 is about 57.4339506242.

The spelling of 189455 in words is "one hundred eighty-nine thousand, four hundred fifty-five".