281097339 has 8 divisors (see below), whose sum is σ = 376352592. Its totient is φ = 186620160.

The previous prime is 281097317. The next prime is 281097347. The reversal of 281097339 is 933790182.

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

It is not a de Polignac number, because 281097339 - 2¹³ = 281089147 is a prime.

It is a super-3 number, since 3×281097339³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 281097339.

It is not an unprimeable number, because it can be changed into a prime (281097389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193674 + ... + 195119.

It is an arithmetic number, because the mean of its divisors is an integer number (47044074).

Almost surely, 2^281097339 is an apocalyptic number.

281097339 is a deficient number, since it is larger than the sum of its proper divisors (95255253).

281097339 is a wasteful number, since it uses less digits than its factorization.

281097339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389037.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 281097339 is about 16765.9577418053. The cubic root of 281097339 is about 655.0667833932.

The spelling of 281097339 in words is "two hundred eighty-one million, ninety-seven thousand, three hundred thirty-nine".