1280847071 has 8 divisors (see below), whose sum is σ = 1465340544. Its totient is φ = 1096732440.

The previous prime is 1280847047. The next prime is 1280847079. The reversal of 1280847071 is 1707480821.

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 1280847071 - 2¹⁸ = 1280584927 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 (1280847079) 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, 87425 + ... + 101018.

It is an arithmetic number, because the mean of its divisors is an integer number (183167568).

Almost surely, 2^1280847071 is an apocalyptic number.

1280847071 is a deficient number, since it is larger than the sum of its proper divisors (184493473).

1280847071 is an equidigital number, since it uses as much as digits as its factorization.

1280847071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189421.

The product of its (nonzero) digits is 25088, while the sum is 38.

The square root of 1280847071 is about 35788.9238592054. The cubic root of 1280847071 is about 1086.0065047030.

The spelling of 1280847071 in words is "one billion, two hundred eighty million, eight hundred forty-seven thousand, seventy-one".