113503215 has 16 divisors (see below), whose sum is σ = 207548928. Its totient is φ = 51887136.

The previous prime is 113503151. The next prime is 113503223. The reversal of 113503215 is 512305311.

It is not a de Polignac number, because 113503215 - 2⁶ = 113503151 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 113503191 and 113503200.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 540387 + ... + 540596.

It is an arithmetic number, because the mean of its divisors is an integer number (12971808).

Almost surely, 2^113503215 is an apocalyptic number.

113503215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

113503215 is a deficient number, since it is larger than the sum of its proper divisors (94045713).

113503215 is a wasteful number, since it uses less digits than its factorization.

113503215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080998.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 113503215 is about 10653.7887626891. The cubic root of 113503215 is about 484.1754011608.

Adding to 113503215 its reverse (512305311), we get a palindrome (625808526).

The spelling of 113503215 in words is "one hundred thirteen million, five hundred three thousand, two hundred fifteen".