540615 has 16 divisors (see below), whose sum is σ = 903168. Its totient is φ = 275616.

The previous prime is 540613. The next prime is 540619. The reversal of 540615 is 516045.

It is a happy number.

It is not a de Polignac number, because 540615 - 2¹ = 540613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 540591 and 540600.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 540615.

It is not an unprimeable number, because it can be changed into a prime (540611) 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, 439 + ... + 1128.

It is an arithmetic number, because the mean of its divisors is an integer number (56448).

2⁵⁴⁰⁶¹⁵ is an apocalyptic number.

540615 is a deficient number, since it is larger than the sum of its proper divisors (362553).

540615 is a wasteful number, since it uses less digits than its factorization.

540615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1598.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 540615 is about 735.2652582572. The cubic root of 540615 is about 81.4634309700.

The spelling of 540615 in words is "five hundred forty thousand, six hundred fifteen".