113445405 has 48 divisors (see below), whose sum is σ = 201636864. Its totient is φ = 58988160.

The previous prime is 113445391. The next prime is 113445427. The reversal of 113445405 is 504544311.

It is a happy number.

113445405 is a `hidden beast` number, since 113 + 4 + 4 + 540 + 5 = 666.

It is not a de Polignac number, because 113445405 - 2⁴ = 113445389 is a prime.

It is a super-2 number, since 2×113445405² = 25739719831228050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 575767 + ... + 575963.

It is an arithmetic number, because the mean of its divisors is an integer number (4200768).

Almost surely, 2^113445405 is an apocalyptic number.

113445405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

113445405 is a deficient number, since it is larger than the sum of its proper divisors (88191459).

113445405 is a wasteful number, since it uses less digits than its factorization.

113445405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466 (or 463 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 113445405 is about 10651.0752978279. The cubic root of 113445405 is about 484.0931863580.

Adding to 113445405 its reverse (504544311), we get a palindrome (617989716).

The spelling of 113445405 in words is "one hundred thirteen million, four hundred forty-five thousand, four hundred five".