1280331227 has 8 divisors (see below), whose sum is σ = 1478321376. Its totient is φ = 1086112512.

The previous prime is 1280331203. The next prime is 1280331253. The reversal of 1280331227 is 7221330821.

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 1280331227 - 2⁸ = 1280330971 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1280331227.

It is not an unprimeable number, because it can be changed into a prime (1280331827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 942128 + ... + 943485.

It is an arithmetic number, because the mean of its divisors is an integer number (184790172).

Almost surely, 2^1280331227 is an apocalyptic number.

1280331227 is a deficient number, since it is larger than the sum of its proper divisors (197990149).

1280331227 is an equidigital number, since it uses as much as digits as its factorization.

1280331227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1885717.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 1280331227 is about 35781.7163786200. The cubic root of 1280331227 is about 1085.8606936028.

The spelling of 1280331227 in words is "one billion, two hundred eighty million, three hundred thirty-one thousand, two hundred twenty-seven".