13500885 has 16 divisors (see below), whose sum is σ = 22541184. Its totient is φ = 6887232.

The previous prime is 13500881. The next prime is 13500889. The reversal of 13500885 is 58800531.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13500881) and next prime (13500889).

It is not a de Polignac number, because 13500885 - 2² = 13500881 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13500881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19222 + ... + 19911.

It is an arithmetic number, because the mean of its divisors is an integer number (1408824).

Almost surely, 2^13500885 is an apocalyptic number.

13500885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13500885 is a deficient number, since it is larger than the sum of its proper divisors (9040299).

13500885 is a wasteful number, since it uses less digits than its factorization.

13500885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39164.

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 13500885 is about 3674.3550454468. The cubic root of 13500885 is about 238.1153608294.

The spelling of 13500885 in words is "thirteen million, five hundred thousand, eight hundred eighty-five".