13161349 has 6 divisors (see below), whose sum is σ = 13981394. Its totient is φ = 12386880.

The previous prime is 13161347. The next prime is 13161371. The reversal of 13161349 is 94316131.

It can be written as a sum of positive squares in 3 ways, for example, as 2304324 + 10857025 = 1518^2 + 3295^2 .

It is not a de Polignac number, because 13161349 - 2¹ = 13161347 is a prime.

It is a super-2 number, since 2×13161349² = 346442214999602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13161347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22482 + ... + 23059.

Almost surely, 2^13161349 is an apocalyptic number.

It is an amenable number.

13161349 is a deficient number, since it is larger than the sum of its proper divisors (820045).

13161349 is an equidigital number, since it uses as much as digits as its factorization.

13161349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45575 (or 45558 counting only the distinct ones).

The product of its digits is 1944, while the sum is 28.

The square root of 13161349 is about 3627.8573566225. The cubic root of 13161349 is about 236.1022550752.

The spelling of 13161349 in words is "thirteen million, one hundred sixty-one thousand, three hundred forty-nine".