13283281 has 8 divisors (see below), whose sum is σ = 14799744. Its totient is φ = 11818320.

The previous prime is 13283267. The next prime is 13283287. The reversal of 13283281 is 18238231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13283281 - 2⁹ = 13282769 is a prime.

It is a super-2 number, since 2×13283281² = 352891108249922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13283287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12330 + ... + 13363.

It is an arithmetic number, because the mean of its divisors is an integer number (1849968).

Almost surely, 2^13283281 is an apocalyptic number.

13283281 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13283281 is a deficient number, since it is larger than the sum of its proper divisors (1516463).

13283281 is a wasteful number, since it uses less digits than its factorization.

13283281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25751.

The product of its digits is 2304, while the sum is 28.

The square root of 13283281 is about 3644.6235745273. The cubic root of 13283281 is about 236.8291302218.

The spelling of 13283281 in words is "thirteen million, two hundred eighty-three thousand, two hundred eighty-one".