13575943 has 2 divisors, whose sum is σ = 13575944. Its totient is φ = 13575942.

The previous prime is 13575907. The next prime is 13575949. The reversal of 13575943 is 34957531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13575943 - 2⁹ = 13575431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13575949) 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 as a sum of consecutive naturals, namely, 6787971 + 6787972.

It is an arithmetic number, because the mean of its divisors is an integer number (6787972).

Almost surely, 2^13575943 is an apocalyptic number.

13575943 is a deficient number, since it is larger than the sum of its proper divisors (1).

13575943 is an equidigital number, since it uses as much as digits as its factorization.

13575943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56700, while the sum is 37.

The square root of 13575943 is about 3684.5546542289. The cubic root of 13575943 is about 238.5558120565. Note that the first 3 decimals are identical.

The spelling of 13575943 in words is "thirteen million, five hundred seventy-five thousand, nine hundred forty-three".