115213288 has 16 divisors (see below), whose sum is σ = 223474500. Its totient is φ = 55620096.

The previous prime is 115213277. The next prime is 115213289. The reversal of 115213288 is 882312511.

It can be written as a sum of positive squares in 2 ways, for example, as 114961284 + 252004 = 10722^2 + 502^2 .

It is not an unprimeable number, because it can be changed into a prime (115213289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248073 + ... + 248536.

Almost surely, 2^115213288 is an apocalyptic number.

It is an amenable number.

115213288 is a deficient number, since it is larger than the sum of its proper divisors (108261212).

115213288 is a wasteful number, since it uses less digits than its factorization.

115213288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496644 (or 496640 counting only the distinct ones).

The product of its digits is 3840, while the sum is 31.

The square root of 115213288 is about 10733.7452923013. The cubic root of 115213288 is about 486.5948673294.

Adding to 115213288 its reverse (882312511), we get a palindrome (997525799).

The spelling of 115213288 in words is "one hundred fifteen million, two hundred thirteen thousand, two hundred eighty-eight".