280054963 has 2 divisors, whose sum is σ = 280054964. Its totient is φ = 280054962.

The previous prime is 280054949. The next prime is 280054981. The reversal of 280054963 is 369450082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 280054963 - 2²⁵ = 246500531 is a prime.

It is not a weakly prime, because it can be changed into another prime (280054903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140027481 + 140027482.

It is an arithmetic number, because the mean of its divisors is an integer number (140027482).

Almost surely, 2^280054963 is an apocalyptic number.

280054963 is a deficient number, since it is larger than the sum of its proper divisors (1).

280054963 is an equidigital number, since it uses as much as digits as its factorization.

280054963 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 280054963 is about 16734.8427838447. The cubic root of 280054963 is about 654.2560658127.

The spelling of 280054963 in words is "two hundred eighty million, fifty-four thousand, nine hundred sixty-three".