540226769 has 2 divisors, whose sum is σ = 540226770. Its totient is φ = 540226768.

The previous prime is 540226763. The next prime is 540226777. The reversal of 540226769 is 967622045.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 460660369 + 79566400 = 21463^2 + 8920^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-540226769 is a prime.

It is a super-2 number, since 2×540226769² = 583689923888358722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (540226763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270113384 + 270113385.

It is an arithmetic number, because the mean of its divisors is an integer number (270113385).

Almost surely, 2^540226769 is an apocalyptic number.

It is an amenable number.

540226769 is a deficient number, since it is larger than the sum of its proper divisors (1).

540226769 is an equidigital number, since it uses as much as digits as its factorization.

540226769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 540226769 is about 23242.7788570988. The cubic root of 540226769 is about 814.4392589829.

The spelling of 540226769 in words is "five hundred forty million, two hundred twenty-six thousand, seven hundred sixty-nine".