113555539 has 4 divisors (see below), whose sum is σ = 113583456. Its totient is φ = 113527624.

The previous prime is 113555513. The next prime is 113555551. The reversal of 113555539 is 935555311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 935555311 = 53 ⋅17651987.

It is a cyclic number.

It is not a de Polignac number, because 113555539 - 2²¹ = 111458387 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113555498 and 113555507.

It is not an unprimeable number, because it can be changed into a prime (113555509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6544 + ... + 16429.

It is an arithmetic number, because the mean of its divisors is an integer number (28395864).

Almost surely, 2^113555539 is an apocalyptic number.

113555539 is a deficient number, since it is larger than the sum of its proper divisors (27917).

113555539 is an equidigital number, since it uses as much as digits as its factorization.

113555539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27916.

The product of its digits is 50625, while the sum is 37.

The square root of 113555539 is about 10656.2441319632. The cubic root of 113555539 is about 484.2497899546.

The spelling of 113555539 in words is "one hundred thirteen million, five hundred fifty-five thousand, five hundred thirty-nine".