113612550 has 24 divisors (see below), whose sum is σ = 281759496. Its totient is φ = 30296640.

The previous prime is 113612531. The next prime is 113612563. The reversal of 113612550 is 55216311.

It is a self number, because there is not a number n which added to its sum of digits gives 113612550.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 378559 + ... + 378858.

It is an arithmetic number, because the mean of its divisors is an integer number (11739979).

Almost surely, 2^113612550 is an apocalyptic number.

113612550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

113612550 is an abundant number, since it is smaller than the sum of its proper divisors (168146946).

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

113612550 is a wasteful number, since it uses less digits than its factorization.

113612550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757432 (or 757427 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 113612550 is about 10658.9188007039. The cubic root of 113612550 is about 484.3308162264.

Adding to 113612550 its reverse (55216311), we get a palindrome (168828861).

The spelling of 113612550 in words is "one hundred thirteen million, six hundred twelve thousand, five hundred fifty".