540617121 has 12 divisors (see below), whose sum is σ = 851881680. Its totient is φ = 327646680.

The previous prime is 540617107. The next prime is 540617137. The reversal of 540617121 is 121716045.

It is a happy number.

540617121 is a `hidden beast` number, since 5 + 40 + 617 + 1 + 2 + 1 = 666.

It is not a de Polignac number, because 540617121 - 2¹¹ = 540615073 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (540617141) 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 11 ways as a sum of consecutive naturals, for example, 2730291 + ... + 2730488.

It is an arithmetic number, because the mean of its divisors is an integer number (70990140).

Almost surely, 2^540617121 is an apocalyptic number.

It is an amenable number.

540617121 is a deficient number, since it is larger than the sum of its proper divisors (311264559).

540617121 is a wasteful number, since it uses less digits than its factorization.

540617121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5460796 (or 5460793 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 540617121 is about 23251.1746154899. The cubic root of 540617121 is about 814.6353750523.

The spelling of 540617121 in words is "five hundred forty million, six hundred seventeen thousand, one hundred twenty-one".