113683945 has 4 divisors (see below), whose sum is σ = 136420740. Its totient is φ = 90947152.

The previous prime is 113683937. The next prime is 113683949. The reversal of 113683945 is 549386311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20985561 + 92698384 = 4581^2 + 9628^2 .

It is a cyclic number.

It is not a de Polignac number, because 113683945 - 2³ = 113683937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 113683898 and 113683907.

It is not an unprimeable number, because it can be changed into a prime (113683949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11368390 + ... + 11368399.

It is an arithmetic number, because the mean of its divisors is an integer number (34105185).

Almost surely, 2^113683945 is an apocalyptic number.

It is an amenable number.

113683945 is a deficient number, since it is larger than the sum of its proper divisors (22736795).

113683945 is an equidigital number, since it uses as much as digits as its factorization.

113683945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22736794.

The product of its digits is 77760, while the sum is 40.

The square root of 113683945 is about 10662.2673479894. The cubic root of 113683945 is about 484.4322473857.

The spelling of 113683945 in words is "one hundred thirteen million, six hundred eighty-three thousand, nine hundred forty-five".