289140919 has 2 divisors, whose sum is σ = 289140920. Its totient is φ = 289140918.

The previous prime is 289140911. The next prime is 289140923. The reversal of 289140919 is 919041982.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 289140919 - 2³ = 289140911 is a prime.

It is a super-2 number, since 2×289140919² = 167204942080329122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (289140911) by changing a digit.

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 as a sum of consecutive naturals, namely, 144570459 + 144570460.

It is an arithmetic number, because the mean of its divisors is an integer number (144570460).

Almost surely, 2^289140919 is an apocalyptic number.

289140919 is a deficient number, since it is larger than the sum of its proper divisors (1).

289140919 is an equidigital number, since it uses as much as digits as its factorization.

289140919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 43.

The square root of 289140919 is about 17004.1441713483. The cubic root of 289140919 is about 661.2563451018.

The spelling of 289140919 in words is "two hundred eighty-nine million, one hundred forty thousand, nine hundred nineteen".