280600139 has 2 divisors, whose sum is σ = 280600140. Its totient is φ = 280600138.

The previous prime is 280600123. The next prime is 280600211. The reversal of 280600139 is 931006082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 280600139 - 2⁴ = 280600123 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (280600939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140300069 + 140300070.

It is an arithmetic number, because the mean of its divisors is an integer number (140300070).

Almost surely, 2^280600139 is an apocalyptic number.

280600139 is a deficient number, since it is larger than the sum of its proper divisors (1).

280600139 is an equidigital number, since it uses as much as digits as its factorization.

280600139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 280600139 is about 16751.1235145587. The cubic root of 280600139 is about 654.6803319417.

The spelling of 280600139 in words is "two hundred eighty million, six hundred thousand, one hundred thirty-nine".