280493107 has 2 divisors, whose sum is σ = 280493108. Its totient is φ = 280493106.

The previous prime is 280493093. The next prime is 280493153. The reversal of 280493107 is 701394082.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-280493107 is a prime.

It is not a weakly prime, because it can be changed into another prime (280493167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140246553 + 140246554.

It is an arithmetic number, because the mean of its divisors is an integer number (140246554).

Almost surely, 2^280493107 is an apocalyptic number.

280493107 is a deficient number, since it is larger than the sum of its proper divisors (1).

280493107 is an equidigital number, since it uses as much as digits as its factorization.

280493107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 280493107 is about 16747.9284390637. The cubic root of 280493107 is about 654.5970810248.

The spelling of 280493107 in words is "two hundred eighty million, four hundred ninety-three thousand, one hundred seven".