113821255 has 8 divisors (see below), whose sum is σ = 137994192. Its totient is φ = 90117888.

The previous prime is 113821247. The next prime is 113821261. The reversal of 113821255 is 552128311.

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

It is a cyclic number.

It is not a de Polignac number, because 113821255 - 2³ = 113821247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 116857 + ... + 117826.

It is an arithmetic number, because the mean of its divisors is an integer number (17249274).

Almost surely, 2^113821255 is an apocalyptic number.

113821255 is a deficient number, since it is larger than the sum of its proper divisors (24172937).

113821255 is an equidigital number, since it uses as much as digits as its factorization.

113821255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234785.

The product of its digits is 2400, while the sum is 28.

The square root of 113821255 is about 10668.7044668038. The cubic root of 113821255 is about 484.6272049336.

Adding to 113821255 its reverse (552128311), we get a palindrome (665949566).

The spelling of 113821255 in words is "one hundred thirteen million, eight hundred twenty-one thousand, two hundred fifty-five".