1271280479 has 8 divisors (see below), whose sum is σ = 1453516800. Its totient is φ = 1089200376.

The previous prime is 1271280467. The next prime is 1271280499. The reversal of 1271280479 is 9740821721.

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 1271280479 - 2⁸ = 1271280223 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 (1271280499) 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, 21059 + ... + 54644.

It is an arithmetic number, because the mean of its divisors is an integer number (181689600).

Almost surely, 2^1271280479 is an apocalyptic number.

1271280479 is a deficient number, since it is larger than the sum of its proper divisors (182236321).

1271280479 is an equidigital number, since it uses as much as digits as its factorization.

1271280479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78109.

The product of its (nonzero) digits is 56448, while the sum is 41.

The square root of 1271280479 is about 35655.0203898413. The cubic root of 1271280479 is about 1083.2959664482.

The spelling of 1271280479 in words is "one billion, two hundred seventy-one million, two hundred eighty thousand, four hundred seventy-nine".