280230047 has 2 divisors, whose sum is σ = 280230048. Its totient is φ = 280230046.

The previous prime is 280230037. The next prime is 280230053. The reversal of 280230047 is 740032082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 280230047 - 2¹⁸ = 279967903 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 280229998 and 280230025.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (280230007) 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, 140115023 + 140115024.

It is an arithmetic number, because the mean of its divisors is an integer number (140115024).

Almost surely, 2^280230047 is an apocalyptic number.

280230047 is a deficient number, since it is larger than the sum of its proper divisors (1).

280230047 is an equidigital number, since it uses as much as digits as its factorization.

280230047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 280230047 is about 16740.0730882514. The cubic root of 280230047 is about 654.3923794191.

The spelling of 280230047 in words is "two hundred eighty million, two hundred thirty thousand, forty-seven".