113005305 has 24 divisors (see below), whose sum is σ = 223858752. Its totient is φ = 51659424.

The previous prime is 113005297. The next prime is 113005309. The reversal of 113005305 is 503500311.

It is a happy number.

113005305 is a `hidden beast` number, since 1 + 130 + 0 + 530 + 5 = 666.

It is not a de Polignac number, because 113005305 - 2³ = 113005297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113005309) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 179059 + ... + 179688.

It is an arithmetic number, because the mean of its divisors is an integer number (9327448).

Almost surely, 2^113005305 is an apocalyptic number.

113005305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

113005305 is a deficient number, since it is larger than the sum of its proper divisors (110853447).

113005305 is a wasteful number, since it uses less digits than its factorization.

113005305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358765 (or 358762 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 18.

The square root of 113005305 is about 10630.3953360164. The cubic root of 113005305 is about 483.4663782240.

Adding to 113005305 its reverse (503500311), we get a palindrome (616505616).

The spelling of 113005305 in words is "one hundred thirteen million, five thousand, three hundred five".