13575869 has 2 divisors, whose sum is σ = 13575870. Its totient is φ = 13575868.

The previous prime is 13575833. The next prime is 13575871. The reversal of 13575869 is 96857531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13227769 + 348100 = 3637^2 + 590^2 .

It is a cyclic number.

It is not a de Polignac number, because 13575869 - 2¹⁶ = 13510333 is a prime.

It is a super-2 number, since 2×13575869² = 368608438210322, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 13575871, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13575889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6787934 + 6787935.

It is an arithmetic number, because the mean of its divisors is an integer number (6787935).

Almost surely, 2^13575869 is an apocalyptic number.

It is an amenable number.

13575869 is a deficient number, since it is larger than the sum of its proper divisors (1).

13575869 is an equidigital number, since it uses as much as digits as its factorization.

13575869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 226800, while the sum is 44.

The square root of 13575869 is about 3684.5446122961. The cubic root of 13575869 is about 238.5553786142. Note that the first 3 decimals are identical.

The spelling of 13575869 in words is "thirteen million, five hundred seventy-five thousand, eight hundred sixty-nine".