13781485 has 8 divisors (see below), whose sum is σ = 17256960. Its totient is φ = 10545744.

The previous prime is 13781477. The next prime is 13781491. The reversal of 13781485 is 58418731.

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 13781485 - 2³ = 13781477 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59805 + ... + 60034.

It is an arithmetic number, because the mean of its divisors is an integer number (2157120).

Almost surely, 2^13781485 is an apocalyptic number.

It is an amenable number.

13781485 is a deficient number, since it is larger than the sum of its proper divisors (3475475).

13781485 is a wasteful number, since it uses less digits than its factorization.

13781485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119867.

The product of its digits is 26880, while the sum is 37.

The square root of 13781485 is about 3712.3422525408. The cubic root of 13781485 is about 239.7537114650.

The spelling of 13781485 in words is "thirteen million, seven hundred eighty-one thousand, four hundred eighty-five".