1281204082 has 16 divisors (see below), whose sum is σ = 2035923552. Its totient is φ = 602602560.

The previous prime is 1281204073. The next prime is 1281204091. The reversal of 1281204082 is 2804021821.

It is an interprime number because it is at equal distance from previous prime (1281204073) and next prime (1281204091).

It is a self number, because there is not a number n which added to its sum of digits gives 1281204082.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63613 + ... + 81295.

It is an arithmetic number, because the mean of its divisors is an integer number (127245222).

Almost surely, 2^1281204082 is an apocalyptic number.

1281204082 is a deficient number, since it is larger than the sum of its proper divisors (754719470).

1281204082 is a wasteful number, since it uses less digits than its factorization.

1281204082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19833.

The product of its (nonzero) digits is 2048, while the sum is 28.

The square root of 1281204082 is about 35793.9112419976. The cubic root of 1281204082 is about 1086.1073963342.

The spelling of 1281204082 in words is "one billion, two hundred eighty-one million, two hundred four thousand, eighty-two".