540004121 has 16 divisors (see below), whose sum is σ = 561610368. Its totient is φ = 518918400.

The previous prime is 540004117. The next prime is 540004151. The reversal of 540004121 is 121400045.

540004121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 540004121 - 2² = 540004117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 540004121.

It is not an unprimeable number, because it can be changed into a prime (540004151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 855476 + ... + 856106.

It is an arithmetic number, because the mean of its divisors is an integer number (35100648).

Almost surely, 2^540004121 is an apocalyptic number.

It is an amenable number.

540004121 is a deficient number, since it is larger than the sum of its proper divisors (21606247).

540004121 is a wasteful number, since it uses less digits than its factorization.

540004121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 540004121 is about 23237.9887468774. The cubic root of 540004121 is about 814.3273564760.

Adding to 540004121 its reverse (121400045), we get a palindrome (661404166).

The spelling of 540004121 in words is "five hundred forty million, four thousand, one hundred twenty-one".