13813775 has 12 divisors (see below), whose sum is σ = 18137232. Its totient is φ = 10400640.

The previous prime is 13813771. The next prime is 13813783. The reversal of 13813775 is 57731831.

It is not a de Polignac number, because 13813775 - 2² = 13813771 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13813771) 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, 15827 + ... + 16676.

It is an arithmetic number, because the mean of its divisors is an integer number (1511436).

Almost surely, 2^13813775 is an apocalyptic number.

13813775 is a deficient number, since it is larger than the sum of its proper divisors (4323457).

13813775 is a wasteful number, since it uses less digits than its factorization.

13813775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32530 (or 32525 counting only the distinct ones).

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

The square root of 13813775 is about 3716.6887144339. The cubic root of 13813775 is about 239.9408129512.

The spelling of 13813775 in words is "thirteen million, eight hundred thirteen thousand, seven hundred seventy-five".