113185730 has 16 divisors (see below), whose sum is σ = 232839360. Its totient is φ = 38806512.

The previous prime is 113185673. The next prime is 113185739. The reversal of 113185730 is 37581311.

It is a super-2 number, since 2×113185730² = 25622018951265800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 113185693 and 113185702.

It is not an unprimeable number, because it can be changed into a prime (113185739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 808400 + ... + 808539.

It is an arithmetic number, because the mean of its divisors is an integer number (14552460).

Almost surely, 2^113185730 is an apocalyptic number.

113185730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

113185730 is an abundant number, since it is smaller than the sum of its proper divisors (119653630).

113185730 is a wasteful number, since it uses less digits than its factorization.

113185730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1616953.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 113185730 is about 10638.8782303399. The cubic root of 113185730 is about 483.7235432564.

The spelling of 113185730 in words is "one hundred thirteen million, one hundred eighty-five thousand, seven hundred thirty".