540138841 has 8 divisors (see below), whose sum is σ = 623903904. Its totient is φ = 462150720.

The previous prime is 540138827. The next prime is 540138853. The reversal of 540138841 is 148831045.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 540138841 - 2¹³ = 540130649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 540138797 and 540138806.

It is not an unprimeable number, because it can be changed into a prime (540138041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1444035 + ... + 1444408.

It is an arithmetic number, because the mean of its divisors is an integer number (77987988).

Almost surely, 2^540138841 is an apocalyptic number.

It is an amenable number.

540138841 is a deficient number, since it is larger than the sum of its proper divisors (83765063).

540138841 is a wasteful number, since it uses less digits than its factorization.

540138841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2888471.

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 540138841 is about 23240.8872679164. The cubic root of 540138841 is about 814.3950701935.

Adding to 540138841 its reverse (148831045), we get a palindrome (688969886).

The spelling of 540138841 in words is "five hundred forty million, one hundred thirty-eight thousand, eight hundred forty-one".