113666305 has 8 divisors (see below), whose sum is σ = 140799744. Its totient is φ = 87999600.

The previous prime is 113666281. The next prime is 113666323. The reversal of 113666305 is 503666311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 113666305 - 2¹³ = 113658113 is a prime.

It is a super-3 number, since 3×113666305³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 366511 + ... + 366820.

It is an arithmetic number, because the mean of its divisors is an integer number (17599968).

Almost surely, 2^113666305 is an apocalyptic number.

It is an amenable number.

113666305 is a deficient number, since it is larger than the sum of its proper divisors (27133439).

113666305 is an equidigital number, since it uses as much as digits as its factorization.

113666305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733367.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 113666305 is about 10661.4400997239. The cubic root of 113666305 is about 484.4071901188.

It can be divided in two parts, 11366 and 6305, that added together give a palindrome (17671).

The spelling of 113666305 in words is "one hundred thirteen million, six hundred sixty-six thousand, three hundred five".