288939113 has 2 divisors, whose sum is σ = 288939114. Its totient is φ = 288939112.

The previous prime is 288939109. The next prime is 288939149. The reversal of 288939113 is 311939882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 184633744 + 104305369 = 13588^2 + 10213^2 .

It is a cyclic number.

It is not a de Polignac number, because 288939113 - 2² = 288939109 is a prime.

It is a super-2 number, since 2×288939113² = 166971622042453538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (288939173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144469556 + 144469557.

It is an arithmetic number, because the mean of its divisors is an integer number (144469557).

Almost surely, 2^288939113 is an apocalyptic number.

It is an amenable number.

288939113 is a deficient number, since it is larger than the sum of its proper divisors (1).

288939113 is an equidigital number, since it uses as much as digits as its factorization.

288939113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 44.

The square root of 288939113 is about 16998.2091115505. The cubic root of 288939113 is about 661.1024679351.

The spelling of 288939113 in words is "two hundred eighty-eight million, nine hundred thirty-nine thousand, one hundred thirteen".