540620613 has 48 divisors (see below), whose sum is σ = 861194880. Its totient is φ = 324777600.

The previous prime is 540620609. The next prime is 540620627. The reversal of 540620613 is 316026045.

540620613 is a `hidden beast` number, since 5 + 40 + 6 + 2 + 0 + 613 = 666.

It is not a de Polignac number, because 540620613 - 2² = 540620609 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540620683) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 1505728 + ... + 1506086.

It is an arithmetic number, because the mean of its divisors is an integer number (17941560).

Almost surely, 2^540620613 is an apocalyptic number.

It is an amenable number.

540620613 is a deficient number, since it is larger than the sum of its proper divisors (320574267).

540620613 is a wasteful number, since it uses less digits than its factorization.

540620613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650 (or 647 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 540620613 is about 23251.2497083490. The cubic root of 540620613 is about 814.6371290359.

Adding to 540620613 its reverse (316026045), we get a palindrome (856646658).

The spelling of 540620613 in words is "five hundred forty million, six hundred twenty thousand, six hundred thirteen".