113851381 has 8 divisors (see below), whose sum is σ = 131578560. Its totient is φ = 96489888.

The previous prime is 113851373. The next prime is 113851399. The reversal of 113851381 is 183158311.

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 113851381 - 2³ = 113851373 is a prime.

It is a super-2 number, since 2×113851381² = 25924273911214322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113851321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90751 + ... + 91996.

It is an arithmetic number, because the mean of its divisors is an integer number (16447320).

Almost surely, 2^113851381 is an apocalyptic number.

It is an amenable number.

113851381 is a deficient number, since it is larger than the sum of its proper divisors (17727179).

113851381 is an equidigital number, since it uses as much as digits as its factorization.

113851381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182843.

The product of its digits is 2880, while the sum is 31.

The square root of 113851381 is about 10670.1162599102. The cubic root of 113851381 is about 484.6699579070.

The spelling of 113851381 in words is "one hundred thirteen million, eight hundred fifty-one thousand, three hundred eighty-one".