1271260648 has 32 divisors (see below), whose sum is σ = 2812008960. Its totient is φ = 527250240.

The previous prime is 1271260567. The next prime is 1271260651. The reversal of 1271260648 is 8460621721.

It is a super-2 number, since 2×1271260648² = 3232207270306759808, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364411 + ... + 367882.

It is an arithmetic number, because the mean of its divisors is an integer number (87875280).

Almost surely, 2^1271260648 is an apocalyptic number.

It is an amenable number.

1271260648 is an abundant number, since it is smaller than the sum of its proper divisors (1540748312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1271260648 is a wasteful number, since it uses less digits than its factorization.

1271260648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732337 (or 732333 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 1271260648 is about 35654.7422932771. The cubic root of 1271260648 is about 1083.2903335569.

The spelling of 1271260648 in words is "one billion, two hundred seventy-one million, two hundred sixty thousand, six hundred forty-eight".