248611819 has 2 divisors, whose sum is σ = 248611820. Its totient is φ = 248611818.

The previous prime is 248611787. The next prime is 248611829. The reversal of 248611819 is 918116842.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 248611819 - 2⁵ = 248611787 is a prime.

It is a super-2 number, since 2×248611819² = 123615673092977522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (248611829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124305909 + 124305910.

It is an arithmetic number, because the mean of its divisors is an integer number (124305910).

Almost surely, 2^248611819 is an apocalyptic number.

248611819 is a deficient number, since it is larger than the sum of its proper divisors (1).

248611819 is an equidigital number, since it uses as much as digits as its factorization.

248611819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 40.

The square root of 248611819 is about 15767.4290548586. The cubic root of 248611819 is about 628.7923611330.

The spelling of 248611819 in words is "two hundred forty-eight million, six hundred eleven thousand, eight hundred nineteen".