281423255 has 4 divisors (see below), whose sum is σ = 337707912. Its totient is φ = 225138600.

The previous prime is 281423209. The next prime is 281423257. The reversal of 281423255 is 552324182.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-281423255 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (281423257) 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, 28142321 + ... + 28142330.

It is an arithmetic number, because the mean of its divisors is an integer number (84426978).

Almost surely, 2^281423255 is an apocalyptic number.

281423255 is a deficient number, since it is larger than the sum of its proper divisors (56284657).

281423255 is an equidigital number, since it uses as much as digits as its factorization.

281423255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56284656.

The product of its digits is 19200, while the sum is 32.

The square root of 281423255 is about 16775.6745020878. The cubic root of 281423255 is about 655.3198562105.

The spelling of 281423255 in words is "two hundred eighty-one million, four hundred twenty-three thousand, two hundred fifty-five".