13575939 has 12 divisors (see below), whose sum is σ = 19601496. Its totient is φ = 8354112.

The previous prime is 13575907. The next prime is 13575943. The reversal of 13575939 is 93957531.

It is a happy number.

13575939 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 13575939 - 2⁵ = 13575907 is a prime.

It is a super-2 number, since 2×13575939² = 368612239463442, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13575939.

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, 12882 + ... + 13895.

It is an arithmetic number, because the mean of its divisors is an integer number (1633458).

Almost surely, 2^13575939 is an apocalyptic number.

13575939 is a deficient number, since it is larger than the sum of its proper divisors (6025557).

13575939 is a wasteful number, since it uses less digits than its factorization.

13575939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26806 (or 26793 counting only the distinct ones).

The product of its digits is 127575, while the sum is 42.

The square root of 13575939 is about 3684.5541114224. The cubic root of 13575939 is about 238.5557886272. Note that the first 3 decimals are identical.

It can be divided in two parts, 135759 and 39, that multiplied together give a square (5294601 = 2301²).

The spelling of 13575939 in words is "thirteen million, five hundred seventy-five thousand, nine hundred thirty-nine".