248453993 has 2 divisors, whose sum is σ = 248453994. Its totient is φ = 248453992.

The previous prime is 248453987. The next prime is 248454007. The reversal of 248453993 is 399354842.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 174028864 + 74425129 = 13192^2 + 8627^2 .

It is a cyclic number.

It is not a de Polignac number, because 248453993 - 2¹² = 248449897 is a prime.

It is not a weakly prime, because it can be changed into another prime (248453923) 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 as a sum of consecutive naturals, namely, 124226996 + 124226997.

It is an arithmetic number, because the mean of its divisors is an integer number (124226997).

Almost surely, 2^248453993 is an apocalyptic number.

It is an amenable number.

248453993 is a deficient number, since it is larger than the sum of its proper divisors (1).

248453993 is an equidigital number, since it uses as much as digits as its factorization.

248453993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 933120, while the sum is 47.

The square root of 248453993 is about 15762.4234494573. The cubic root of 248453993 is about 628.6592744182.

The spelling of 248453993 in words is "two hundred forty-eight million, four hundred fifty-three thousand, nine hundred ninety-three".