1280733051 has 32 divisors (see below), whose sum is σ = 1870102080. Its totient is φ = 774918144.

The previous prime is 1280733049. The next prime is 1280733071. The reversal of 1280733051 is 1503370821.

It is not a de Polignac number, because 1280733051 - 2¹ = 1280733049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1280733011) 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 31 ways as a sum of consecutive naturals, for example, 682851 + ... + 684723.

It is an arithmetic number, because the mean of its divisors is an integer number (58440690).

Almost surely, 2^1280733051 is an apocalyptic number.

1280733051 is a deficient number, since it is larger than the sum of its proper divisors (589369029).

1280733051 is a wasteful number, since it uses less digits than its factorization.

1280733051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2175.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 1280733051 is about 35787.3308728103. The cubic root of 1280733051 is about 1085.9742785981.

The spelling of 1280733051 in words is "one billion, two hundred eighty million, seven hundred thirty-three thousand, fifty-one".