113113505 has 8 divisors (see below), whose sum is σ = 136171752. Its totient is φ = 90200448.

The previous prime is 113113493. The next prime is 113113519. The reversal of 113113505 is 505311311.

It can be written as a sum of positive squares in 4 ways, for example, as 5202961 + 107910544 = 2281^2 + 10388^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 113113505 - 2⁴ = 113113489 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 (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34574 + ... + 37703.

It is an arithmetic number, because the mean of its divisors is an integer number (17021469).

Almost surely, 2^113113505 is an apocalyptic number.

It is an amenable number.

113113505 is a deficient number, since it is larger than the sum of its proper divisors (23058247).

113113505 is an equidigital number, since it uses as much as digits as its factorization.

113113505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72595.

The product of its (nonzero) digits is 225, while the sum is 20.

The square root of 113113505 is about 10635.4832988445. The cubic root of 113113505 is about 483.6206316769.

Adding to 113113505 its reverse (505311311), we get a palindrome (618424816).

The spelling of 113113505 in words is "one hundred thirteen million, one hundred thirteen thousand, five hundred five".