190489 has 4 divisors (see below), whose sum is σ = 205156. Its totient is φ = 175824.

The previous prime is 190471. The next prime is 190507. The reversal of 190489 is 984091.

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

It is an interprime number because it is at equal distance from previous prime (190471) and next prime (190507).

It can be written as a sum of positive squares in 2 ways, for example, as 90000 + 100489 = 300^2 + 317^2 .

It is a cyclic number.

It is not a de Polignac number, because 190489 - 2⁹ = 189977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 190489.

It is not an unprimeable number, because it can be changed into a prime (190409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7314 + ... + 7339.

It is an arithmetic number, because the mean of its divisors is an integer number (51289).

2¹⁹⁰⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

190489 is a deficient number, since it is larger than the sum of its proper divisors (14667).

190489 is a wasteful number, since it uses less digits than its factorization.

190489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14666.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 190489 is about 436.4504553784. The cubic root of 190489 is about 57.5382480244.

The spelling of 190489 in words is "one hundred ninety thousand, four hundred eighty-nine".