248105791 has 2 divisors, whose sum is σ = 248105792. Its totient is φ = 248105790.

The previous prime is 248105777. The next prime is 248105821. The reversal of 248105791 is 197501842.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 248105791 - 2¹¹ = 248103743 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 248105791.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (248105731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124052895 + 124052896.

It is an arithmetic number, because the mean of its divisors is an integer number (124052896).

Almost surely, 2^248105791 is an apocalyptic number.

248105791 is a deficient number, since it is larger than the sum of its proper divisors (1).

248105791 is an equidigital number, since it uses as much as digits as its factorization.

248105791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 248105791 is about 15751.3742575053. The cubic root of 248105791 is about 628.3654537463.

The spelling of 248105791 in words is "two hundred forty-eight million, one hundred five thousand, seven hundred ninety-one".