248221003 has 2 divisors, whose sum is σ = 248221004. Its totient is φ = 248221002.

The previous prime is 248220989. The next prime is 248221007. The reversal of 248221003 is 300122842.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 248221003 - 2⁵ = 248220971 is a prime.

It is a super-2 number, since 2×248221003² = 123227332660652018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (248221007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124110501 + 124110502.

It is an arithmetic number, because the mean of its divisors is an integer number (124110502).

Almost surely, 2^248221003 is an apocalyptic number.

248221003 is a deficient number, since it is larger than the sum of its proper divisors (1).

248221003 is an equidigital number, since it uses as much as digits as its factorization.

248221003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 248221003 is about 15755.0310377352. The cubic root of 248221003 is about 628.4627026353.

Adding to 248221003 its reverse (300122842), we get a palindrome (548343845).

The spelling of 248221003 in words is "two hundred forty-eight million, two hundred twenty-one thousand, three".