13575161 has 4 divisors (see below), whose sum is σ = 14043300. Its totient is φ = 13107024.

The previous prime is 13575131. The next prime is 13575167. The reversal of 13575161 is 16157531.

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 6451600 + 7123561 = 2540^2 + 2669^2 .

It is a cyclic number.

It is not a de Polignac number, because 13575161 - 2⁶ = 13575097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 468109 = 13575161 / (1 + 3 + 5 + 7 + 5 + 1 + 6 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13575167) 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, 234026 + ... + 234083.

It is an arithmetic number, because the mean of its divisors is an integer number (3510825).

Almost surely, 2^13575161 is an apocalyptic number.

It is an amenable number.

13575161 is a deficient number, since it is larger than the sum of its proper divisors (468139).

13575161 is an equidigital number, since it uses as much as digits as its factorization.

13575161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468138.

The product of its digits is 3150, while the sum is 29.

The square root of 13575161 is about 3684.4485340414. The cubic root of 13575161 is about 238.5512315465.

The spelling of 13575161 in words is "thirteen million, five hundred seventy-five thousand, one hundred sixty-one".