540138275 has 6 divisors (see below), whose sum is σ = 669771492. Its totient is φ = 432110600.

The previous prime is 540138257. The next prime is 540138299. The reversal of 540138275 is 572831045.

It is a happy number.

It is not a de Polignac number, because 540138275 - 2⁸ = 540138019 is a prime.

It is a super-2 number, since 2×540138275² = 583498712239951250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10802741 + ... + 10802790.

It is an arithmetic number, because the mean of its divisors is an integer number (111628582).

Almost surely, 2^540138275 is an apocalyptic number.

540138275 is a deficient number, since it is larger than the sum of its proper divisors (129633217).

540138275 is a wasteful number, since it uses less digits than its factorization.

540138275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21605541 (or 21605536 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 540138275 is about 23240.8750910976. The cubic root of 540138275 is about 814.3947857310.

The spelling of 540138275 in words is "five hundred forty million, one hundred thirty-eight thousand, two hundred seventy-five".