113555245 has 4 divisors (see below), whose sum is σ = 136266300. Its totient is φ = 90844192.

The previous prime is 113555227. The next prime is 113555261. The reversal of 113555245 is 542555311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 542555311 = 21799 ⋅24889.

It can be written as a sum of positive squares in 2 ways, for example, as 79192201 + 34363044 = 8899^2 + 5862^2 .

It is a cyclic number.

It is not a de Polignac number, because 113555245 - 2¹⁵ = 113522477 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11355520 + ... + 11355529.

It is an arithmetic number, because the mean of its divisors is an integer number (34066575).

Almost surely, 2^113555245 is an apocalyptic number.

It is an amenable number.

113555245 is a deficient number, since it is larger than the sum of its proper divisors (22711055).

113555245 is an equidigital number, since it uses as much as digits as its factorization.

113555245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22711054.

The product of its digits is 15000, while the sum is 31.

The square root of 113555245 is about 10656.2303372253. The cubic root of 113555245 is about 484.2493720400.

The spelling of 113555245 in words is "one hundred thirteen million, five hundred fifty-five thousand, two hundred forty-five".