1280083933 has 2 divisors, whose sum is σ = 1280083934. Its totient is φ = 1280083932.

The previous prime is 1280083859. The next prime is 1280083939. The reversal of 1280083933 is 3393800821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 754161444 + 525922489 = 27462^2 + 22933^2 .

It is a cyclic number.

It is not a de Polignac number, because 1280083933 - 2⁹ = 1280083421 is a prime.

It is a super-2 number, since 2×1280083933² = 3277229751049496978, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1280083892 and 1280083901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1280083939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 640041966 + 640041967.

It is an arithmetic number, because the mean of its divisors is an integer number (640041967).

Almost surely, 2^1280083933 is an apocalyptic number.

It is an amenable number.

1280083933 is a deficient number, since it is larger than the sum of its proper divisors (1).

1280083933 is an equidigital number, since it uses as much as digits as its factorization.

1280083933 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 1280083933 is about 35778.2606201028. The cubic root of 1280083933 is about 1085.7907783290.

The spelling of 1280083933 in words is "one billion, two hundred eighty million, eighty-three thousand, nine hundred thirty-three".