281445241 has 8 divisors (see below), whose sum is σ = 350892864. Its totient is φ = 219307920.

The previous prime is 281445221. The next prime is 281445257. The reversal of 281445241 is 142544182.

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 281445241 - 2⁹ = 281444729 is a prime.

It is a super-2 number, since 2×281445241² = 158422847363096162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (281445221) 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, 1827490 + ... + 1827643.

It is an arithmetic number, because the mean of its divisors is an integer number (43861608).

Almost surely, 2^281445241 is an apocalyptic number.

It is an amenable number.

281445241 is a deficient number, since it is larger than the sum of its proper divisors (69447623).

281445241 is a wasteful number, since it uses less digits than its factorization.

281445241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3655151.

The product of its digits is 10240, while the sum is 31.

The square root of 281445241 is about 16776.3297833585. The cubic root of 281445241 is about 655.3369212384.

The spelling of 281445241 in words is "two hundred eighty-one million, four hundred forty-five thousand, two hundred forty-one".