2268148549 has 2 divisors, whose sum is σ = 2268148550. Its totient is φ = 2268148548.

The previous prime is 2268148537. The next prime is 2268148583. The reversal of 2268148549 is 9458418622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2109564900 + 158583649 = 45930^2 + 12593^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2268148549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2268148049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1134074274 + 1134074275.

It is an arithmetic number, because the mean of its divisors is an integer number (1134074275).

Almost surely, 2^2268148549 is an apocalyptic number.

It is an amenable number.

2268148549 is a deficient number, since it is larger than the sum of its proper divisors (1).

2268148549 is an equidigital number, since it uses as much as digits as its factorization.

2268148549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1105920, while the sum is 49.

The square root of 2268148549 is about 47625.0831915284. The cubic root of 2268148549 is about 1313.8844262250.

The spelling of 2268148549 in words is "two billion, two hundred sixty-eight million, one hundred forty-eight thousand, five hundred forty-nine".