113215566 has 32 divisors (see below), whose sum is σ = 239063040. Its totient is φ = 35645184.

The previous prime is 113215561. The next prime is 113215601. The reversal of 113215566 is 665512311.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113215561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42366 + ... + 44958.

It is an arithmetic number, because the mean of its divisors is an integer number (7470720).

Almost surely, 2^113215566 is an apocalyptic number.

113215566 is an abundant number, since it is smaller than the sum of its proper divisors (125847474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

113215566 is a wasteful number, since it uses less digits than its factorization.

113215566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3000.

The product of its digits is 5400, while the sum is 30.

The square root of 113215566 is about 10640.2803534493. The cubic root of 113215566 is about 483.7660430417.

Adding to 113215566 its reverse (665512311), we get a palindrome (778727877).

The spelling of 113215566 in words is "one hundred thirteen million, two hundred fifteen thousand, five hundred sixty-six".