113642166 has 64 divisors (see below), whose sum is σ = 254891520. Its totient is φ = 33488640.

The previous prime is 113642131. The next prime is 113642167. The reversal of 113642166 is 661246311.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113642167) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 496140 + ... + 496368.

It is an arithmetic number, because the mean of its divisors is an integer number (3982680).

Almost surely, 2^113642166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113642166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127445760).

113642166 is an abundant number, since it is smaller than the sum of its proper divisors (141249354).

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

113642166 is a wasteful number, since it uses less digits than its factorization.

113642166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421.

The product of its digits is 5184, while the sum is 30.

The square root of 113642166 is about 10660.3079692849. The cubic root of 113642166 is about 484.3728969510.

Adding to 113642166 its reverse (661246311), we get a palindrome (774888477).

It can be divided in two parts, 11364 and 2166, that added together give a triangular number (13530 = T₁₆₄).

The spelling of 113642166 in words is "one hundred thirteen million, six hundred forty-two thousand, one hundred sixty-six".