540166769 has 4 divisors (see below), whose sum is σ = 540673140. Its totient is φ = 539660400.

The previous prime is 540166741. The next prime is 540166787. The reversal of 540166769 is 967661045.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 246490000 + 293676769 = 15700^2 + 17137^2 .

It is a cyclic number.

It is not a de Polignac number, because 540166769 - 2¹² = 540162673 is a prime.

It is a super-2 number, since 2×540166769² = 583560276663798722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540166729) 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 in 3 ways as a sum of consecutive naturals, for example, 251582 + ... + 253719.

It is an arithmetic number, because the mean of its divisors is an integer number (135168285).

Almost surely, 2^540166769 is an apocalyptic number.

It is an amenable number.

540166769 is a deficient number, since it is larger than the sum of its proper divisors (506371).

540166769 is a wasteful number, since it uses less digits than its factorization.

540166769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506370.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 540166769 is about 23241.4880977961. The cubic root of 540166769 is about 814.4091061116.

The spelling of 540166769 in words is "five hundred forty million, one hundred sixty-six thousand, seven hundred sixty-nine".