13140104 has 8 divisors (see below), whose sum is σ = 24637710. Its totient is φ = 6570048.

The previous prime is 13140089. The next prime is 13140109. The reversal of 13140104 is 40104131.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12888100 + 252004 = 3590^2 + 502^2 .

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

It is not an unprimeable number, because it can be changed into a prime (13140109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 821249 + ... + 821264.

Almost surely, 2^13140104 is an apocalyptic number.

It is an amenable number.

13140104 is a deficient number, since it is larger than the sum of its proper divisors (11497606).

13140104 is a wasteful number, since it uses less digits than its factorization.

13140104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1642519 (or 1642515 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 13140104 is about 3624.9281372187. The cubic root of 13140104 is about 235.9751482018.

Adding to 13140104 its reverse (40104131), we get a palindrome (53244235).

The spelling of 13140104 in words is "thirteen million, one hundred forty thousand, one hundred four".