189245 has 8 divisors (see below), whose sum is σ = 259584. Its totient is φ = 129744.

The previous prime is 189239. The next prime is 189251. The reversal of 189245 is 542981.

189245 = T₈₆ + T₈₇ + ... + T₁₂₀.

It is an interprime number because it is at equal distance from previous prime (189239) and next prime (189251).

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 189245 - 2⁴ = 189229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2669 + ... + 2738.

It is an arithmetic number, because the mean of its divisors is an integer number (32448).

2¹⁸⁹²⁴⁵ is an apocalyptic number.

It is an amenable number.

189245 is a deficient number, since it is larger than the sum of its proper divisors (70339).

189245 is an equidigital number, since it uses as much as digits as its factorization.

189245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5419.

The product of its digits is 2880, while the sum is 29.

The square root of 189245 is about 435.0229878983. The cubic root of 189245 is about 57.4127220321.

It can be divided in two parts, 189 and 245, that added together give a palindrome (434).

The spelling of 189245 in words is "one hundred eighty-nine thousand, two hundred forty-five".