13304145 has 16 divisors (see below), whose sum is σ = 21398400. Its totient is φ = 7058304.

The previous prime is 13304141. The next prime is 13304147. The reversal of 13304145 is 54140331.

It is not a de Polignac number, because 13304145 - 2² = 13304141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13304141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 757 + ... + 5213.

It is an arithmetic number, because the mean of its divisors is an integer number (1337400).

Almost surely, 2^13304145 is an apocalyptic number.

13304145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13304145 is a deficient number, since it is larger than the sum of its proper divisors (8094255).

13304145 is a wasteful number, since it uses less digits than its factorization.

13304145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4664.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 13304145 is about 3647.4847497968. The cubic root of 13304145 is about 236.9530609029.

Adding to 13304145 its reverse (54140331), we get a palindrome (67444476).

The spelling of 13304145 in words is "thirteen million, three hundred four thousand, one hundred forty-five".