13475969 has 4 divisors (see below), whose sum is σ = 14512596. Its totient is φ = 12439344.

The previous prime is 13475933. The next prime is 13475971. The reversal of 13475969 is 96957431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9120400 + 4355569 = 3020^2 + 2087^2 .

It is a cyclic number.

It is not a de Polignac number, because 13475969 - 2¹² = 13471873 is a prime.

It is a super-2 number, since 2×13475969² = 363203480977922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13475909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 518294 + ... + 518319.

It is an arithmetic number, because the mean of its divisors is an integer number (3628149).

Almost surely, 2^13475969 is an apocalyptic number.

It is an amenable number.

13475969 is a deficient number, since it is larger than the sum of its proper divisors (1036627).

13475969 is a wasteful number, since it uses less digits than its factorization.

13475969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036626.

The product of its digits is 204120, while the sum is 44.

The square root of 13475969 is about 3670.9629526869. The cubic root of 13475969 is about 237.9687893070.

The spelling of 13475969 in words is "thirteen million, four hundred seventy-five thousand, nine hundred sixty-nine".