1271405084356 has 81 divisors (see below), whose sum is σ = 2473850404207. Its totient is φ = 571315140880.

The previous prime is 1271405084353. The next prime is 1271405084359. The reversal of 1271405084356 is 6534805041721.

The square root of 1271405084356 is 1127566.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (1271405084353) and next prime (1271405084359).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1271405084353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2654290125 + ... + 2654290603.

Almost surely, 2^{1271405084356} is an apocalyptic number.

1271405084356 is the 1127566-th square number.

It is an amenable number.

1271405084356 is a deficient number, since it is larger than the sum of its proper divisors (1202445319851).

1271405084356 is an equidigital number, since it uses as much as digits as its factorization.

1271405084356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1198 (or 599 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 46.

The spelling of 1271405084356 in words is "one trillion, two hundred seventy-one billion, four hundred five million, eighty-four thousand, three hundred fifty-six".