280231083 has 20 divisors (see below), whose sum is σ = 456674328. Its totient is φ = 169836480.

The previous prime is 280231079. The next prime is 280231097. The reversal of 280231083 is 380132082.

It is not a de Polignac number, because 280231083 - 2² = 280231079 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (280231033) 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 in 19 ways as a sum of consecutive naturals, for example, 156366 + ... + 158147.

Almost surely, 2^280231083 is an apocalyptic number.

280231083 is a deficient number, since it is larger than the sum of its proper divisors (176443245).

280231083 is a wasteful number, since it uses less digits than its factorization.

280231083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314536 (or 314527 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 280231083 is about 16740.1040319348. The cubic root of 280231083 is about 654.3931858395.

Subtracting 280231083 from its reverse (380132082), we obtain a palindrome (99900999).

The spelling of 280231083 in words is "two hundred eighty million, two hundred thirty-one thousand, eighty-three".