13102004 has 6 divisors (see below), whose sum is σ = 22928514. Its totient is φ = 6551000.

The previous prime is 13102003. The next prime is 13102009. The reversal of 13102004 is 40020131.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9672100 + 3429904 = 3110^2 + 1852^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13102003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1637747 + ... + 1637754.

It is an arithmetic number, because the mean of its divisors is an integer number (3821419).

Almost surely, 2^13102004 is an apocalyptic number.

It is an amenable number.

13102004 is a deficient number, since it is larger than the sum of its proper divisors (9826510).

13102004 is a wasteful number, since it uses less digits than its factorization.

13102004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3275505 (or 3275503 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 13102004 is about 3619.6690456449. The cubic root of 13102004 is about 235.7468558256.

Adding to 13102004 its reverse (40020131), we get a palindrome (53122135).

The spelling of 13102004 in words is "thirteen million, one hundred two thousand, four".