13581074 has 16 divisors (see below), whose sum is σ = 22044120. Its totient is φ = 6238080.

The previous prime is 13581053. The next prime is 13581083. The reversal of 13581074 is 47018531.

It can be written as a sum of positive squares in 4 ways, for example, as 12567025 + 1014049 = 3545^2 + 1007^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4814 + ... + 7094.

Almost surely, 2^13581074 is an apocalyptic number.

13581074 is a deficient number, since it is larger than the sum of its proper divisors (8463046).

13581074 is a wasteful number, since it uses less digits than its factorization.

13581074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2525.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 13581074 is about 3685.2508734142. The cubic root of 13581074 is about 238.5858621654.

The spelling of 13581074 in words is "thirteen million, five hundred eighty-one thousand, seventy-four".