13001608 has 8 divisors (see below), whose sum is σ = 24378030. Its totient is φ = 6500800.

The previous prime is 13001603. The next prime is 13001621. The reversal of 13001608 is 80610031.

It can be written as a sum of positive squares in only one way, i.e., 8749764 + 4251844 = 2958^2 + 2062^2 .

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

It is a hoax number, since the sum of its digits (19) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (13001603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 812593 + ... + 812608.

Almost surely, 2^13001608 is an apocalyptic number.

It is an amenable number.

13001608 is a deficient number, since it is larger than the sum of its proper divisors (11376422).

13001608 is a wasteful number, since it uses less digits than its factorization.

13001608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625207 (or 1625203 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 13001608 is about 3605.7742580478. The cubic root of 13001608 is about 235.1431631062.

Adding to 13001608 its reverse (80610031), we get a palindrome (93611639).

The spelling of 13001608 in words is "thirteen million, one thousand, six hundred eight".