248116821 has 8 divisors (see below), whose sum is σ = 330896160. Its totient is φ = 165374352.

The previous prime is 248116811. The next prime is 248116849. The reversal of 248116821 is 128611842.

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

It is not a de Polignac number, because 248116821 - 2¹⁰ = 248115797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248116811) 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, 17815 + ... + 28523.

It is an arithmetic number, because the mean of its divisors is an integer number (41362020).

Almost surely, 2^248116821 is an apocalyptic number.

It is an amenable number.

248116821 is a deficient number, since it is larger than the sum of its proper divisors (82779339).

248116821 is a wasteful number, since it uses less digits than its factorization.

248116821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18435.

The product of its digits is 6144, while the sum is 33.

The square root of 248116821 is about 15751.7243817939. The cubic root of 248116821 is about 628.3747653229.

The spelling of 248116821 in words is "two hundred forty-eight million, one hundred sixteen thousand, eight hundred twenty-one".