13161097 has 4 divisors (see below), whose sum is σ = 13341460. Its totient is φ = 12980736.

The previous prime is 13161079. The next prime is 13161121. The reversal of 13161097 is 79016131.

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 9585216 + 3575881 = 3096^2 + 1891^2 .

It is a cyclic number.

It is not a de Polignac number, because 13161097 - 2⁷ = 13160969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13161017) 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, 90072 + ... + 90217.

It is an arithmetic number, because the mean of its divisors is an integer number (3335365).

Almost surely, 2^13161097 is an apocalyptic number.

It is an amenable number.

13161097 is a deficient number, since it is larger than the sum of its proper divisors (180363).

13161097 is an equidigital number, since it uses as much as digits as its factorization.

13161097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180362.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 13161097 is about 3627.8226252120. The cubic root of 13161097 is about 236.1007481844.

The spelling of 13161097 in words is "thirteen million, one hundred sixty-one thousand, ninety-seven".