189755 has 4 divisors (see below), whose sum is σ = 227712. Its totient is φ = 151800.

The previous prime is 189743. The next prime is 189757. The reversal of 189755 is 557981.

189755 = T₂₇₃ + T₂₇₄ + ... + T₂₇₇.

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

It is not a de Polignac number, because 189755 - 2⁶ = 189691 is a prime.

It is a d-powerful number, because it can be written as 1 + 8⁵ + 7 + 9³ + 5⁷ + 5⁷ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18971 + ... + 18980.

It is an arithmetic number, because the mean of its divisors is an integer number (56928).

2¹⁸⁹⁷⁵⁵ is an apocalyptic number.

189755 is a deficient number, since it is larger than the sum of its proper divisors (37957).

189755 is an equidigital number, since it uses as much as digits as its factorization.

189755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37956.

The product of its digits is 12600, while the sum is 35.

The square root of 189755 is about 435.6087694250. The cubic root of 189755 is about 57.4642499891.

The spelling of 189755 in words is "one hundred eighty-nine thousand, seven hundred fifty-five".