1333281 has 8 divisors (see below), whose sum is σ = 1784160. Its totient is φ = 885632.

The previous prime is 1333273. The next prime is 1333289. The reversal of 1333281 is 1823331.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1333273) and next prime (1333289).

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 1333281 - 2³ = 1333273 is a prime.

It is a super-2 number, since 2×1333281² = 3555276449922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1333289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 430 + ... + 1688.

It is an arithmetic number, because the mean of its divisors is an integer number (223020).

2^1333281 is an apocalyptic number.

It is an amenable number.

1333281 is a deficient number, since it is larger than the sum of its proper divisors (450879).

1333281 is a wasteful number, since it uses less digits than its factorization.

1333281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1615.

The product of its digits is 432, while the sum is 21.

The square root of 1333281 is about 1154.6778771588. The cubic root of 1333281 is about 110.0628016038.

The spelling of 1333281 in words is "one million, three hundred thirty-three thousand, two hundred eighty-one".