281363227 has 2 divisors, whose sum is σ = 281363228. Its totient is φ = 281363226.

The previous prime is 281363213. The next prime is 281363287. The reversal of 281363227 is 722363182.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-281363227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 281363192 and 281363201.

It is not a weakly prime, because it can be changed into another prime (281363287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140681613 + 140681614.

It is an arithmetic number, because the mean of its divisors is an integer number (140681614).

Almost surely, 2^281363227 is an apocalyptic number.

281363227 is a deficient number, since it is larger than the sum of its proper divisors (1).

281363227 is an equidigital number, since it uses as much as digits as its factorization.

281363227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 34.

The square root of 281363227 is about 16773.8852684761. The cubic root of 281363227 is about 655.2732593297.

The spelling of 281363227 in words is "two hundred eighty-one million, three hundred sixty-three thousand, two hundred twenty-seven".