2291347049 has 2 divisors, whose sum is σ = 2291347050. Its totient is φ = 2291347048.

The previous prime is 2291347027. The next prime is 2291347067. The reversal of 2291347049 is 9407431922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2175569449 + 115777600 = 46643^2 + 10760^2 .

It is a cyclic number.

It is not a de Polignac number, because 2291347049 - 2⁸ = 2291346793 is a prime.

It is a super-2 number, since 2×2291347049² = 10500542597922016802, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2291346997 and 2291347015.

It is not a weakly prime, because it can be changed into another prime (2291343049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1145673524 + 1145673525.

It is an arithmetic number, because the mean of its divisors is an integer number (1145673525).

Almost surely, 2^2291347049 is an apocalyptic number.

It is an amenable number.

2291347049 is a deficient number, since it is larger than the sum of its proper divisors (1).

2291347049 is an equidigital number, since it uses as much as digits as its factorization.

2291347049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 2291347049 is about 47868.0169737582. The cubic root of 2291347049 is about 1318.3486867222.

The spelling of 2291347049 in words is "two billion, two hundred ninety-one million, three hundred forty-seven thousand, forty-nine".