280010233 has 2 divisors, whose sum is σ = 280010234. Its totient is φ = 280010232.

The previous prime is 280010231. The next prime is 280010243. The reversal of 280010233 is 332010082.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 260887104 + 19123129 = 16152^2 + 4373^2 .

It is a cyclic number.

It is not a de Polignac number, because 280010233 - 2¹ = 280010231 is a prime.

Together with 280010231, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 280010233.

It is not a weakly prime, because it can be changed into another prime (280010231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140005116 + 140005117.

It is an arithmetic number, because the mean of its divisors is an integer number (140005117).

Almost surely, 2^280010233 is an apocalyptic number.

It is an amenable number.

280010233 is a deficient number, since it is larger than the sum of its proper divisors (1).

280010233 is an equidigital number, since it uses as much as digits as its factorization.

280010233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 280010233 is about 16733.5062972469. The cubic root of 280010233 is about 654.2212316600.

The spelling of 280010233 in words is "two hundred eighty million, ten thousand, two hundred thirty-three".