113321445 has 16 divisors (see below), whose sum is σ = 181560960. Its totient is φ = 60355904.

The previous prime is 113321441. The next prime is 113321447. The reversal of 113321445 is 544123311.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 113321445 - 2² = 113321441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113321441) 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 15 ways as a sum of consecutive naturals, for example, 7216 + ... + 16694.

It is an arithmetic number, because the mean of its divisors is an integer number (11347560).

Almost surely, 2^113321445 is an apocalyptic number.

113321445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

113321445 is a deficient number, since it is larger than the sum of its proper divisors (68239515).

113321445 is an equidigital number, since it uses as much as digits as its factorization.

113321445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10284.

The product of its digits is 1440, while the sum is 24.

The square root of 113321445 is about 10645.2545765707. The cubic root of 113321445 is about 483.9168017751.

Adding to 113321445 its reverse (544123311), we get a palindrome (657444756).

It can be divided in two parts, 1133 and 21445, that added together give a triangular number (22578 = T₂₁₂).

The spelling of 113321445 in words is "one hundred thirteen million, three hundred twenty-one thousand, four hundred forty-five".