113426181 has 48 divisors (see below), whose sum is σ = 192291840. Its totient is φ = 63689760.

The previous prime is 113426177. The next prime is 113426189. The reversal of 113426181 is 181624311.

It is a happy number.

113426181 is a `hidden beast` number, since 1 + 1 + 3 + 42 + 618 + 1 = 666.

It is not a de Polignac number, because 113426181 - 2² = 113426177 is a prime.

It is a super-2 number, since 2×113426181² = 25730997072489522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113426189) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 87766 + ... + 89048.

It is an arithmetic number, because the mean of its divisors is an integer number (4006080).

Almost surely, 2^113426181 is an apocalyptic number.

113426181 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

113426181 is a deficient number, since it is larger than the sum of its proper divisors (78865659).

113426181 is a wasteful number, since it uses less digits than its factorization.

113426181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366 (or 1363 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 113426181 is about 10650.1728154993. The cubic root of 113426181 is about 484.0658406548.

The spelling of 113426181 in words is "one hundred thirteen million, four hundred twenty-six thousand, one hundred eighty-one".