248095021 has 2 divisors, whose sum is σ = 248095022. Its totient is φ = 248095020.

The previous prime is 248094947. The next prime is 248095031. The reversal of 248095021 is 120590842.

248095021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 152250921 + 95844100 = 12339^2 + 9790^2 .

It is a cyclic number.

It is not a de Polignac number, because 248095021 - 2⁷ = 248094893 is a prime.

It is a super-2 number, since 2×248095021² = 123102278889980882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (248095031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124047510 + 124047511.

It is an arithmetic number, because the mean of its divisors is an integer number (124047511).

Almost surely, 2^248095021 is an apocalyptic number.

It is an amenable number.

248095021 is a deficient number, since it is larger than the sum of its proper divisors (1).

248095021 is an equidigital number, since it uses as much as digits as its factorization.

248095021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 248095021 is about 15751.0323788633. The cubic root of 248095021 is about 628.3563613966.

The spelling of 248095021 in words is "two hundred forty-eight million, ninety-five thousand, twenty-one".