289132109 has 8 divisors (see below), whose sum is σ = 337467648. Its totient is φ = 242554320.

The previous prime is 289132091. The next prime is 289132121. The reversal of 289132109 is 901231982.

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 289132109 - 2¹² = 289128013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289132159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 439082 + ... + 439739.

It is an arithmetic number, because the mean of its divisors is an integer number (42183456).

Almost surely, 2^289132109 is an apocalyptic number.

It is an amenable number.

289132109 is a deficient number, since it is larger than the sum of its proper divisors (48335539).

289132109 is an equidigital number, since it uses as much as digits as its factorization.

289132109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878875.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 289132109 is about 17003.8851148789. The cubic root of 289132109 is about 661.2496289677.

The spelling of 289132109 in words is "two hundred eighty-nine million, one hundred thirty-two thousand, one hundred nine".