13100505 has 16 divisors (see below), whose sum is σ = 22866624. Its totient is φ = 6351680.

The previous prime is 13100459. The next prime is 13100513. The reversal of 13100505 is 50500131.

It is not a de Polignac number, because 13100505 - 2⁷ = 13100377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 39534 + ... + 39863.

It is an arithmetic number, because the mean of its divisors is an integer number (1429164).

Almost surely, 2^13100505 is an apocalyptic number.

13100505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13100505 is a deficient number, since it is larger than the sum of its proper divisors (9766119).

13100505 is a wasteful number, since it uses less digits than its factorization.

13100505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79416.

The product of its (nonzero) digits is 75, while the sum is 15.

The square root of 13100505 is about 3619.4619765927. The cubic root of 13100505 is about 235.7378648851.

Adding to 13100505 its reverse (50500131), we get a palindrome (63600636).

The spelling of 13100505 in words is "thirteen million, one hundred thousand, five hundred five".