2148246791 has 2 divisors, whose sum is σ = 2148246792. Its totient is φ = 2148246790.

The previous prime is 2148246781. The next prime is 2148246839. The reversal of 2148246791 is 1976428412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2148246791 - 2²² = 2144052487 is a prime.

It is a super-2 number, since 2×2148246791² = 9229928550083595362, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2148246781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1074123395 + 1074123396.

It is an arithmetic number, because the mean of its divisors is an integer number (1074123396).

Almost surely, 2^2148246791 is an apocalyptic number.

2148246791 is a deficient number, since it is larger than the sum of its proper divisors (1).

2148246791 is an equidigital number, since it uses as much as digits as its factorization.

2148246791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 44.

The square root of 2148246791 is about 46349.1832829878. The cubic root of 2148246791 is about 1290.3119632909.

The spelling of 2148246791 in words is "two billion, one hundred forty-eight million, two hundred forty-six thousand, seven hundred ninety-one".