13287755 has 8 divisors (see below), whose sum is σ = 17171952. Its totient is φ = 9812448.

The previous prime is 13287749. The next prime is 13287779. The reversal of 13287755 is 55778231.

13287755 = 1005² + 1006² + ... + 1017².

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13287755 - 2¹⁰ = 13286731 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 102149 + ... + 102278.

It is an arithmetic number, because the mean of its divisors is an integer number (2146494).

Almost surely, 2^13287755 is an apocalyptic number.

13287755 is a deficient number, since it is larger than the sum of its proper divisors (3884197).

13287755 is a wasteful number, since it uses less digits than its factorization.

13287755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204445.

The product of its digits is 58800, while the sum is 38.

The square root of 13287755 is about 3645.2373036608. The cubic root of 13287755 is about 236.8557163891.

The spelling of 13287755 in words is "thirteen million, two hundred eighty-seven thousand, seven hundred fifty-five".