13580531 has 4 divisors (see below), whose sum is σ = 13632432. Its totient is φ = 13528632.

The previous prime is 13580521. The next prime is 13580533. The reversal of 13580531 is 13508531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13508531 = 71 ⋅190261.

It is a cyclic number.

It is not a de Polignac number, because 13580531 - 2¹⁸ = 13318387 is a prime.

It is a super-2 number, since 2×13580531² = 368861644483922, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 13580531.

It is not an unprimeable number, because it can be changed into a prime (13580533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25556 + ... + 26081.

It is an arithmetic number, because the mean of its divisors is an integer number (3408108).

Almost surely, 2^13580531 is an apocalyptic number.

13580531 is a deficient number, since it is larger than the sum of its proper divisors (51901).

13580531 is an equidigital number, since it uses as much as digits as its factorization.

13580531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51900.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 13580531 is about 3685.1772006241. The cubic root of 13580531 is about 238.5826824010.

The spelling of 13580531 in words is "thirteen million, five hundred eighty thousand, five hundred thirty-one".