280506227 has 2 divisors, whose sum is σ = 280506228. Its totient is φ = 280506226.

The previous prime is 280506173. The next prime is 280506257. The reversal of 280506227 is 722605082.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-280506227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 280506193 and 280506202.

It is not a weakly prime, because it can be changed into another prime (280506257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140253113 + 140253114.

It is an arithmetic number, because the mean of its divisors is an integer number (140253114).

Almost surely, 2^280506227 is an apocalyptic number.

280506227 is a deficient number, since it is larger than the sum of its proper divisors (1).

280506227 is an equidigital number, since it uses as much as digits as its factorization.

280506227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 280506227 is about 16748.3201247170. The cubic root of 280506227 is about 654.6072870746.

The spelling of 280506227 in words is "two hundred eighty million, five hundred six thousand, two hundred twenty-seven".