13780575 has 36 divisors (see below), whose sum is σ = 25050480. Its totient is φ = 7240320.

The previous prime is 13780561. The next prime is 13780577. The reversal of 13780575 is 57508731.

13780575 is a `hidden beast` number, since 1 + 3 + 7 + 80 + 575 = 666.

13780575 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 13780575 - 2¹⁵ = 13747807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13780577) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 16006 + ... + 16844.

Almost surely, 2^13780575 is an apocalyptic number.

13780575 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13780575 is a deficient number, since it is larger than the sum of its proper divisors (11269905).

13780575 is a wasteful number, since it uses less digits than its factorization.

13780575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928 (or 920 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 36.

The square root of 13780575 is about 3712.2196863871. The cubic root of 13780575 is about 239.7484343201.

The spelling of 13780575 in words is "thirteen million, seven hundred eighty thousand, five hundred seventy-five".