113243555 has 8 divisors (see below), whose sum is σ = 136644144. Its totient is φ = 90093600.

The previous prime is 113243531. The next prime is 113243567. The reversal of 113243555 is 555342311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 113243555 - 2¹⁰ = 113242531 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61661 + ... + 63470.

It is an arithmetic number, because the mean of its divisors is an integer number (17080518).

Almost surely, 2^113243555 is an apocalyptic number.

113243555 is a deficient number, since it is larger than the sum of its proper divisors (23400589).

113243555 is a wasteful number, since it uses less digits than its factorization.

113243555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125317.

The product of its digits is 9000, while the sum is 29.

The square root of 113243555 is about 10641.5955100727. The cubic root of 113243555 is about 483.8059050872.

Adding to 113243555 its reverse (555342311), we get a palindrome (668585866).

The spelling of 113243555 in words is "one hundred thirteen million, two hundred forty-three thousand, five hundred fifty-five".