540477121 has 4 divisors (see below), whose sum is σ = 540618544. Its totient is φ = 540335700.

The previous prime is 540477109. The next prime is 540477131. The reversal of 540477121 is 121774045.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 540477121 - 2¹¹ = 540475073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540477131) 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, 64815 + ... + 72676.

It is an arithmetic number, because the mean of its divisors is an integer number (135154636).

Almost surely, 2^540477121 is an apocalyptic number.

It is an amenable number.

540477121 is a deficient number, since it is larger than the sum of its proper divisors (141423).

540477121 is a wasteful number, since it uses less digits than its factorization.

540477121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141422.

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 540477121 is about 23248.1638199665. The cubic root of 540477121 is about 814.5650487565.

The spelling of 540477121 in words is "five hundred forty million, four hundred seventy-seven thousand, one hundred twenty-one".