1271965484 has 6 divisors (see below), whose sum is σ = 2225939604. Its totient is φ = 635982740.

The previous prime is 1271965459. The next prime is 1271965489. The reversal of 1271965484 is 4845691721.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1271965489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158995682 + ... + 158995689.

It is an arithmetic number, because the mean of its divisors is an integer number (370989934).

Almost surely, 2^1271965484 is an apocalyptic number.

It is an amenable number.

1271965484 is a deficient number, since it is larger than the sum of its proper divisors (953974120).

1271965484 is a wasteful number, since it uses less digits than its factorization.

1271965484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317991375 (or 317991373 counting only the distinct ones).

The product of its digits is 483840, while the sum is 47.

The square root of 1271965484 is about 35664.6251066796. The cubic root of 1271965484 is about 1083.4905025670.

The spelling of 1271965484 in words is "one billion, two hundred seventy-one million, nine hundred sixty-five thousand, four hundred eighty-four".