13481775 has 24 divisors (see below), whose sum is σ = 24767760. Its totient is φ = 7189920.

The previous prime is 13481771. The next prime is 13481777. The reversal of 13481775 is 57718431.

13481775 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13481775 - 2² = 13481771 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13481771) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9312 + ... + 10661.

It is an arithmetic number, because the mean of its divisors is an integer number (1031990).

Almost surely, 2^13481775 is an apocalyptic number.

13481775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13481775 is a deficient number, since it is larger than the sum of its proper divisors (11285985).

13481775 is a wasteful number, since it uses less digits than its factorization.

13481775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19992 (or 19981 counting only the distinct ones).

The product of its digits is 23520, while the sum is 36.

The square root of 13481775 is about 3671.7536682081. The cubic root of 13481775 is about 238.0029599707.

The spelling of 13481775 in words is "thirteen million, four hundred eighty-one thousand, seven hundred seventy-five".