13575969 has 12 divisors (see below), whose sum is σ = 21392592. Its totient is φ = 8227800.

The previous prime is 13575949. The next prime is 13575983. The reversal of 13575969 is 96957531.

13575969 is a `hidden beast` number, since 1 + 3 + 57 + 596 + 9 = 666.

13575969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13575969 - 2¹¹ = 13573921 is a prime.

It is a super-2 number, since 2×13575969² = 368613868577922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13575949) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68467 + ... + 68664.

It is an arithmetic number, because the mean of its divisors is an integer number (1782716).

Almost surely, 2^13575969 is an apocalyptic number.

It is an amenable number.

13575969 is a deficient number, since it is larger than the sum of its proper divisors (7816623).

13575969 is a wasteful number, since it uses less digits than its factorization.

13575969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137148 (or 137145 counting only the distinct ones).

The product of its digits is 255150, while the sum is 45.

The square root of 13575969 is about 3684.5581824691. The cubic root of 13575969 is about 238.5559643467. Note that the first 3 decimals are identical.

The spelling of 13575969 in words is "thirteen million, five hundred seventy-five thousand, nine hundred sixty-nine".