13247001 has 12 divisors (see below), whose sum is σ = 19166628. Its totient is φ = 8816544.

The previous prime is 13246991. The next prime is 13247023. The reversal of 13247001 is 10074231.

It can be written as a sum of positive squares in 2 ways, for example, as 5875776 + 7371225 = 2424^2 + 2715^2 .

It is not a de Polignac number, because 13247001 - 2⁵ = 13246969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13247041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8391 + ... + 9843.

It is an arithmetic number, because the mean of its divisors is an integer number (1597219).

Almost surely, 2^13247001 is an apocalyptic number.

It is an amenable number.

13247001 is a deficient number, since it is larger than the sum of its proper divisors (5919627).

13247001 is a wasteful number, since it uses less digits than its factorization.

13247001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2472 (or 2469 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 13247001 is about 3639.6429769965. The cubic root of 13247001 is about 236.6133202075.

The spelling of 13247001 in words is "thirteen million, two hundred forty-seven thousand, one".