189441485 has 16 divisors (see below), whose sum is σ = 237610800. Its totient is φ = 144807936.

The previous prime is 189441481. The next prime is 189441487. The reversal of 189441485 is 584144981.

It can be written as a sum of positive squares in 8 ways, for example, as 48841 + 189392644 = 221^2 + 13762^2 .

It is a cyclic number.

It is not a de Polignac number, because 189441485 - 2² = 189441481 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189441481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7331 + ... + 20799.

It is an arithmetic number, because the mean of its divisors is an integer number (14850675).

Almost surely, 2^189441485 is an apocalyptic number.

It is an amenable number.

189441485 is a deficient number, since it is larger than the sum of its proper divisors (48169315).

189441485 is a wasteful number, since it uses less digits than its factorization.

189441485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13600.

The product of its digits is 184320, while the sum is 44.

The square root of 189441485 is about 13763.7743733323. The cubic root of 189441485 is about 574.3258488507.

The spelling of 189441485 in words is "one hundred eighty-nine million, four hundred forty-one thousand, four hundred eighty-five".