288128611 has 8 divisors (see below), whose sum is σ = 290045664. Its totient is φ = 286218240.

The previous prime is 288128569. The next prime is 288128623. The reversal of 288128611 is 116821882.

288128611 = T₁₃₈₅₈ + T₁₃₈₅₉ + T₁₃₈₆₀.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 11-Lehmer number, since φ(288128611) divides (288128611-1)¹¹.

It is a cyclic number.

It is not a de Polignac number, because 288128611 - 2¹³ = 288120419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (288128641) 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, 106866 + ... + 109528.

It is an arithmetic number, because the mean of its divisors is an integer number (36255708).

Almost surely, 2^288128611 is an apocalyptic number.

288128611 is the 13860-th centered triangular number.

288128611 is a deficient number, since it is larger than the sum of its proper divisors (1917053).

288128611 is a wasteful number, since it uses less digits than its factorization.

288128611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3341.

The product of its digits is 12288, while the sum is 37.

The square root of 288128611 is about 16974.3515634619. The cubic root of 288128611 is about 660.4837370399.

The spelling of 288128611 in words is "two hundred eighty-eight million, one hundred twenty-eight thousand, six hundred eleven".