248823139 has 8 divisors (see below), whose sum is σ = 252463680. Its totient is φ = 245204736.

The previous prime is 248823083. The next prime is 248823151. The reversal of 248823139 is 931328842.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 248823139 - 2⁷ = 248823011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (248823539) 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 7 ways as a sum of consecutive naturals, for example, 17817 + ... + 28549.

It is an arithmetic number, because the mean of its divisors is an integer number (31557960).

Almost surely, 2^248823139 is an apocalyptic number.

248823139 is a deficient number, since it is larger than the sum of its proper divisors (3640541).

248823139 is a wasteful number, since it uses less digits than its factorization.

248823139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11069.

The product of its digits is 82944, while the sum is 40.

The square root of 248823139 is about 15774.1287873530. The cubic root of 248823139 is about 628.9704684755.

The spelling of 248823139 in words is "two hundred forty-eight million, eight hundred twenty-three thousand, one hundred thirty-nine".