13381775 has 12 divisors (see below), whose sum is σ = 18102264. Its totient is φ = 9732000.

The previous prime is 13381769. The next prime is 13381777. The reversal of 13381775 is 57718331.

It is a de Polignac number, because none of the positive numbers 2^k-13381775 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13381777) 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 11 ways as a sum of consecutive naturals, for example, 24056 + ... + 24605.

It is an arithmetic number, because the mean of its divisors is an integer number (1508522).

Almost surely, 2^13381775 is an apocalyptic number.

13381775 is a deficient number, since it is larger than the sum of its proper divisors (4720489).

13381775 is a wasteful number, since it uses less digits than its factorization.

13381775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48682 (or 48677 counting only the distinct ones).

The product of its digits is 17640, while the sum is 35.

The square root of 13381775 is about 3658.1108512455. The cubic root of 13381775 is about 237.4130429581.

It can be divided in two parts, 1338 and 1775, that added together give a palindrome (3113).

The spelling of 13381775 in words is "thirteen million, three hundred eighty-one thousand, seven hundred seventy-five".