289834540231 has 2 divisors, whose sum is σ = 289834540232. Its totient is φ = 289834540230.

The previous prime is 289834540189. The next prime is 289834540267. The reversal of 289834540231 is 132045438982.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 289834540231 - 2⁷ = 289834540103 is a prime.

It is a super-2 number, since 2×289834540231² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (289834540531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144917270115 + 144917270116.

It is an arithmetic number, because the mean of its divisors is an integer number (144917270116).

Almost surely, 2^289834540231 is an apocalyptic number.

289834540231 is a deficient number, since it is larger than the sum of its proper divisors (1).

289834540231 is an equidigital number, since it uses as much as digits as its factorization.

289834540231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1658880, while the sum is 49.

The spelling of 289834540231 in words is "two hundred eighty-nine billion, eight hundred thirty-four million, five hundred forty thousand, two hundred thirty-one".