13161404 has 12 divisors (see below), whose sum is σ = 23062200. Its totient is φ = 6572208.

The previous prime is 13161403. The next prime is 13161419. The reversal of 13161404 is 40416131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13161403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2462 + ... + 5690.

It is an arithmetic number, because the mean of its divisors is an integer number (1921850).

Almost surely, 2^13161404 is an apocalyptic number.

It is an amenable number.

13161404 is a deficient number, since it is larger than the sum of its proper divisors (9900796).

13161404 is a wasteful number, since it uses less digits than its factorization.

13161404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4252 (or 4250 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 13161404 is about 3627.8649368465. The cubic root of 13161404 is about 236.1025839576.

Adding to 13161404 its reverse (40416131), we get a palindrome (53577535).

The spelling of 13161404 in words is "thirteen million, one hundred sixty-one thousand, four hundred four".