113503505 has 16 divisors (see below), whose sum is σ = 142418304. Its totient is φ = 86676480.

The previous prime is 113503499. The next prime is 113503517. The reversal of 113503505 is 505305311.

It is not a de Polignac number, because 113503505 - 2¹⁶ = 113437969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92657 + ... + 93873.

It is an arithmetic number, because the mean of its divisors is an integer number (8901144).

Almost surely, 2^113503505 is an apocalyptic number.

It is an amenable number.

113503505 is a deficient number, since it is larger than the sum of its proper divisors (28914799).

113503505 is a wasteful number, since it uses less digits than its factorization.

113503505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2056.

The product of its (nonzero) digits is 1125, while the sum is 23.

The square root of 113503505 is about 10653.8023728620. The cubic root of 113503505 is about 484.1758135155.

Adding to 113503505 its reverse (505305311), we get a palindrome (618808816).

The spelling of 113503505 in words is "one hundred thirteen million, five hundred three thousand, five hundred five".