13105535 has 32 divisors (see below), whose sum is σ = 17625600. Its totient is φ = 9313920.

The previous prime is 13105507. The next prime is 13105537. The reversal of 13105535 is 53550131.

It is a de Polignac number, because none of the positive numbers 2^k-13105535 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13105535.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13105537) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 184550 + ... + 184620.

It is an arithmetic number, because the mean of its divisors is an integer number (550800).

Almost surely, 2^13105535 is an apocalyptic number.

13105535 is a deficient number, since it is larger than the sum of its proper divisors (4520065).

13105535 is a wasteful number, since it uses less digits than its factorization.

13105535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191.

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

The square root of 13105535 is about 3620.1567645614. The cubic root of 13105535 is about 235.7680319088.

Adding to 13105535 its reverse (53550131), we get a palindrome (66655666).

The spelling of 13105535 in words is "thirteen million, one hundred five thousand, five hundred thirty-five".