113188530 has 96 divisors (see below), whose sum is σ = 340369344. Its totient is φ = 23877504.

The previous prime is 113188519. The next prime is 113188547. The reversal of 113188530 is 35881311.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16149 + ... + 22071.

It is an arithmetic number, because the mean of its divisors is an integer number (3545514).

Almost surely, 2^113188530 is an apocalyptic number.

113188530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 113188530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170184672).

113188530 is an abundant number, since it is smaller than the sum of its proper divisors (227180814).

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

113188530 is a wasteful number, since it uses less digits than its factorization.

113188530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5960 (or 5953 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 113188530 is about 10639.0098223472. The cubic root of 113188530 is about 483.7275320241.

The spelling of 113188530 in words is "one hundred thirteen million, one hundred eighty-eight thousand, five hundred thirty".