288111142 has 16 divisors (see below), whose sum is σ = 472780800. Its totient is φ = 130591240.

The previous prime is 288111097. The next prime is 288111149. The reversal of 288111142 is 241111882.

It is a self number, because there is not a number n which added to its sum of digits gives 288111142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288111149) 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, 10342 + ... + 26137.

It is an arithmetic number, because the mean of its divisors is an integer number (29548800).

Almost surely, 2^288111142 is an apocalyptic number.

288111142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

288111142 is a deficient number, since it is larger than the sum of its proper divisors (184669658).

288111142 is a wasteful number, since it uses less digits than its factorization.

288111142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36851.

The product of its digits is 1024, while the sum is 28.

The square root of 288111142 is about 16973.8369851958. The cubic root of 288111142 is about 660.4703885755.

The spelling of 288111142 in words is "two hundred eighty-eight million, one hundred eleven thousand, one hundred forty-two".