13570 has 16 divisors (see below), whose sum is σ = 25920. Its totient is φ = 5104.

The previous prime is 13567. The next prime is 13577. The reversal of 13570 is 7531.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (13577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201 + ... + 259.

It is an arithmetic number, because the mean of its divisors is an integer number (1620).

2¹³⁵⁷⁰ is an apocalyptic number.

13570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13570 is a deficient number, since it is larger than the sum of its proper divisors (12350).

13570 is a wasteful number, since it uses less digits than its factorization.

13570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89.

The product of its (nonzero) digits is 105, while the sum is 16.

The square root of 13570 is about 116.4903429474. The cubic root of 13570 is about 23.8520996940.

The spelling of 13570 in words is "thirteen thousand, five hundred seventy".