113780385 has 24 divisors (see below), whose sum is σ = 203583744. Its totient is φ = 58724640.

The previous prime is 113780351. The next prime is 113780393. The reversal of 113780385 is 583087311.

It is not a de Polignac number, because 113780385 - 2¹⁶ = 113714849 is a prime.

It is a Curzon 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 23 ways as a sum of consecutive naturals, for example, 39387 + ... + 42176.

It is an arithmetic number, because the mean of its divisors is an integer number (8482656).

Almost surely, 2^113780385 is an apocalyptic number.

113780385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

113780385 is a deficient number, since it is larger than the sum of its proper divisors (89803359).

113780385 is a wasteful number, since it uses less digits than its factorization.

113780385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81605 (or 81602 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 113780385 is about 10666.7888795082. The cubic root of 113780385 is about 484.5691926727.

The spelling of 113780385 in words is "one hundred thirteen million, seven hundred eighty thousand, three hundred eighty-five".