280142147 has 2 divisors, whose sum is σ = 280142148. Its totient is φ = 280142146.

The previous prime is 280142141. The next prime is 280142171. The reversal of 280142147 is 741241082.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 280142147 - 2⁴ = 280142131 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (280142141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140071073 + 140071074.

It is an arithmetic number, because the mean of its divisors is an integer number (140071074).

Almost surely, 2^280142147 is an apocalyptic number.

280142147 is a deficient number, since it is larger than the sum of its proper divisors (1).

280142147 is an equidigital number, since it uses as much as digits as its factorization.

280142147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 280142147 is about 16737.4474457726. The cubic root of 280142147 is about 654.3239509904.

The spelling of 280142147 in words is "two hundred eighty million, one hundred forty-two thousand, one hundred forty-seven".