289841145 has 16 divisors (see below), whose sum is σ = 505904832. Its totient is φ = 140528960.

The previous prime is 289841117. The next prime is 289841159. The reversal of 289841145 is 541148982.

It is not a de Polignac number, because 289841145 - 2¹¹ = 289839097 is a prime.

It is a super-2 number, since 2×289841145² = 168015778669822050, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 289841097 and 289841106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 878142 + ... + 878471.

It is an arithmetic number, because the mean of its divisors is an integer number (31619052).

Almost surely, 2^289841145 is an apocalyptic number.

It is an amenable number.

289841145 is a deficient number, since it is larger than the sum of its proper divisors (216063687).

289841145 is a wasteful number, since it uses less digits than its factorization.

289841145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1756632.

The product of its digits is 92160, while the sum is 42.

The square root of 289841145 is about 17024.7215836266. The cubic root of 289841145 is about 661.7897131790.

The spelling of 289841145 in words is "two hundred eighty-nine million, eight hundred forty-one thousand, one hundred forty-five".