283238057 has 4 divisors (see below), whose sum is σ = 283280580. Its totient is φ = 283195536.

The previous prime is 283238017. The next prime is 283238063. The reversal of 283238057 is 750832382.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 165276736 + 117961321 = 12856^2 + 10861^2 .

It is a cyclic number.

It is not a de Polignac number, because 283238057 - 2⁶ = 283237993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 283238057.

It is not an unprimeable number, because it can be changed into a prime (283238017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8858 + ... + 25395.

It is an arithmetic number, because the mean of its divisors is an integer number (70820145).

Almost surely, 2^283238057 is an apocalyptic number.

It is an amenable number.

283238057 is a deficient number, since it is larger than the sum of its proper divisors (42523).

283238057 is an equidigital number, since it uses as much as digits as its factorization.

283238057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42522.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 283238057 is about 16829.6778638214. The cubic root of 283238057 is about 656.7254833498.

The spelling of 283238057 in words is "two hundred eighty-three million, two hundred thirty-eight thousand, fifty-seven".