13287074 has 4 divisors (see below), whose sum is σ = 19930614. Its totient is φ = 6643536.

The previous prime is 13287049. The next prime is 13287083. The reversal of 13287074 is 47078231.

It is a happy number.

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., 13271449 + 15625 = 3643^2 + 125^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13287074.

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 as a sum of consecutive naturals, namely, 3321767 + ... + 3321770.

Almost surely, 2^13287074 is an apocalyptic number.

13287074 is a deficient number, since it is larger than the sum of its proper divisors (6643540).

13287074 is an equidigital number, since it uses as much as digits as its factorization.

13287074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6643539.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 13287074 is about 3645.1438929074. The cubic root of 13287074 is about 236.8516700196.

The spelling of 13287074 in words is "thirteen million, two hundred eighty-seven thousand, seventy-four".