13580345 has 16 divisors (see below), whose sum is σ = 17279040. Its totient is φ = 10217664.

The previous prime is 13580341. The next prime is 13580353. The reversal of 13580345 is 54308531.

13580345 = T₄₃₀ + T₄₃₁ + ... + T₅₄₃.

It is a cyclic number.

It is not a de Polignac number, because 13580345 - 2² = 13580341 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13580341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15047 + ... + 15923.

It is an arithmetic number, because the mean of its divisors is an integer number (1079940).

Almost surely, 2^13580345 is an apocalyptic number.

It is an amenable number.

13580345 is a deficient number, since it is larger than the sum of its proper divisors (3698695).

13580345 is a wasteful number, since it uses less digits than its factorization.

13580345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 13580345 is about 3685.1519643022. The cubic root of 13580345 is about 238.5815931804.

Adding to 13580345 its reverse (54308531), we get a palindrome (67888876).

The spelling of 13580345 in words is "thirteen million, five hundred eighty thousand, three hundred forty-five".