13481474 has 4 divisors (see below), whose sum is σ = 20222214. Its totient is φ = 6740736.

The previous prime is 13481443. The next prime is 13481477. The reversal of 13481474 is 47418431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6943225 + 6538249 = 2635^2 + 2557^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13481474.

It is not an unprimeable number, because it can be changed into a prime (13481477) 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 as a sum of consecutive naturals, namely, 3370367 + ... + 3370370.

Almost surely, 2^13481474 is an apocalyptic number.

13481474 is a deficient number, since it is larger than the sum of its proper divisors (6740740).

13481474 is an equidigital number, since it uses as much as digits as its factorization.

13481474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6740739.

The product of its digits is 10752, while the sum is 32.

The square root of 13481474 is about 3671.7126793909. The cubic root of 13481474 is about 238.0011887048.

The spelling of 13481474 in words is "thirteen million, four hundred eighty-one thousand, four hundred seventy-four".