1281363348 has 12 divisors (see below), whose sum is σ = 2989847840. Its totient is φ = 427121112.

The previous prime is 1281363337. The next prime is 1281363371. The reversal of 1281363348 is 8433631821.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53390128 + ... + 53390151.

Almost surely, 2^1281363348 is an apocalyptic number.

It is an amenable number.

1281363348 is an abundant number, since it is smaller than the sum of its proper divisors (1708484492).

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

1281363348 is a wasteful number, since it uses less digits than its factorization.

1281363348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106780286 (or 106780284 counting only the distinct ones).

The product of its digits is 82944, while the sum is 39.

The square root of 1281363348 is about 35796.1359367181. The cubic root of 1281363348 is about 1086.1523990042.

The spelling of 1281363348 in words is "one billion, two hundred eighty-one million, three hundred sixty-three thousand, three hundred forty-eight".