13483581 has 4 divisors (see below), whose sum is σ = 17978112. Its totient is φ = 8989052.

The previous prime is 13483537. The next prime is 13483607. The reversal of 13483581 is 18538431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13483581 - 2⁷ = 13483453 is a prime.

It is a super-2 number, since 2×13483581² = 363613913167122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13483511) 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, 2247261 + ... + 2247266.

It is an arithmetic number, because the mean of its divisors is an integer number (4494528).

Almost surely, 2^13483581 is an apocalyptic number.

It is an amenable number.

13483581 is a deficient number, since it is larger than the sum of its proper divisors (4494531).

13483581 is an equidigital number, since it uses as much as digits as its factorization.

13483581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4494530.

The product of its digits is 11520, while the sum is 33.

The square root of 13483581 is about 3671.9995915032. Note that the first 3 decimals coincide. The cubic root of 13483581 is about 238.0135870124.

The spelling of 13483581 in words is "thirteen million, four hundred eighty-three thousand, five hundred eighty-one".