288118231 has 2 divisors, whose sum is σ = 288118232. Its totient is φ = 288118230.

The previous prime is 288118211. The next prime is 288118273. The reversal of 288118231 is 132811882.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 288118231 - 2⁵ = 288118199 is a prime.

It is a super-2 number, since 2×288118231² = 166024230069138722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (288118211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144059115 + 144059116.

It is an arithmetic number, because the mean of its divisors is an integer number (144059116).

Almost surely, 2^288118231 is an apocalyptic number.

288118231 is a deficient number, since it is larger than the sum of its proper divisors (1).

288118231 is an equidigital number, since it uses as much as digits as its factorization.

288118231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6144, while the sum is 34.

The square root of 288118231 is about 16974.0458052876. The cubic root of 288118231 is about 660.4758055084.

It can be divided in two parts, 2881 and 18231, that added together give a palindrome (21112).

The spelling of 288118231 in words is "two hundred eighty-eight million, one hundred eighteen thousand, two hundred thirty-one".