248075621 has 2 divisors, whose sum is σ = 248075622. Its totient is φ = 248075620.

The previous prime is 248075591. The next prime is 248075651. The reversal of 248075621 is 126570842.

It is a balanced prime because it is at equal distance from previous prime (248075591) and next prime (248075651).

It can be written as a sum of positive squares in only one way, i.e., 198528100 + 49547521 = 14090^2 + 7039^2 .

It is a cyclic number.

It is not a de Polignac number, because 248075621 - 2¹⁰ = 248074597 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (248075651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124037810 + 124037811.

It is an arithmetic number, because the mean of its divisors is an integer number (124037811).

Almost surely, 2^248075621 is an apocalyptic number.

It is an amenable number.

248075621 is a deficient number, since it is larger than the sum of its proper divisors (1).

248075621 is an equidigital number, since it uses as much as digits as its factorization.

248075621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 248075621 is about 15750.4165341746. The cubic root of 248075621 is about 628.3399826840.

The spelling of 248075621 in words is "two hundred forty-eight million, seventy-five thousand, six hundred twenty-one".