248021283 has 4 divisors (see below), whose sum is σ = 330695048. Its totient is φ = 165347520.

The previous prime is 248021251. The next prime is 248021393. The reversal of 248021283 is 382120842.

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

It is not a de Polignac number, because 248021283 - 2⁵ = 248021251 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 248021283.

It is not an unprimeable number, because it can be changed into a prime (248021243) 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 in 3 ways as a sum of consecutive naturals, for example, 41336878 + ... + 41336883.

It is an arithmetic number, because the mean of its divisors is an integer number (82673762).

Almost surely, 2^248021283 is an apocalyptic number.

248021283 is a deficient number, since it is larger than the sum of its proper divisors (82673765).

248021283 is an equidigital number, since it uses as much as digits as its factorization.

248021283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82673764.

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 248021283 is about 15748.6914694523. The cubic root of 248021283 is about 628.2941025460.

The spelling of 248021283 in words is "two hundred forty-eight million, twenty-one thousand, two hundred eighty-three".