13132004 has 6 divisors (see below), whose sum is σ = 22981014. Its totient is φ = 6566000.

The previous prime is 13132001. The next prime is 13132033. The reversal of 13132004 is 40023131.

It can be written as a sum of positive squares in only one way, i.e., 9597604 + 3534400 = 3098^2 + 1880^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13132004.

It is not an unprimeable number, because it can be changed into a prime (13132001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1641497 + ... + 1641504.

It is an arithmetic number, because the mean of its divisors is an integer number (3830169).

Almost surely, 2^13132004 is an apocalyptic number.

It is an amenable number.

13132004 is a deficient number, since it is larger than the sum of its proper divisors (9849010).

13132004 is a wasteful number, since it uses less digits than its factorization.

13132004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3283005 (or 3283003 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 13132004 is about 3623.8107014578. The cubic root of 13132004 is about 235.9266505749.

Adding to 13132004 its reverse (40023131), we get a palindrome (53155135).

The spelling of 13132004 in words is "thirteen million, one hundred thirty-two thousand, four".