13281064 has 8 divisors (see below), whose sum is σ = 24902010. Its totient is φ = 6640528.

The previous prime is 13281053. The next prime is 13281071. The reversal of 13281064 is 46018231.

It can be written as a sum of positive squares in only one way, i.e., 13264164 + 16900 = 3642^2 + 130^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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, 830059 + ... + 830074.

Almost surely, 2^13281064 is an apocalyptic number.

It is an amenable number.

13281064 is a deficient number, since it is larger than the sum of its proper divisors (11620946).

13281064 is a wasteful number, since it uses less digits than its factorization.

13281064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1660139 (or 1660135 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 13281064 is about 3644.3194151995. The cubic root of 13281064 is about 236.8159537736.

Adding to 13281064 its reverse (46018231), we get a palindrome (59299295).

The spelling of 13281064 in words is "thirteen million, two hundred eighty-one thousand, sixty-four".