540517917 has 12 divisors (see below), whose sum is σ = 753389504. Its totient is φ = 344677080.

The previous prime is 540517897. The next prime is 540517927. The reversal of 540517917 is 719715045.

It is not a de Polignac number, because 540517917 - 2⁸ = 540517661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540517927) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 168709 + ... + 171882.

Almost surely, 2^540517917 is an apocalyptic number.

It is an amenable number.

540517917 is a deficient number, since it is larger than the sum of its proper divisors (212871587).

540517917 is a wasteful number, since it uses less digits than its factorization.

540517917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340640 (or 340617 counting only the distinct ones).

The product of its (nonzero) digits is 44100, while the sum is 39.

The square root of 540517917 is about 23249.0412060369. The cubic root of 540517917 is about 814.5855430928.

The spelling of 540517917 in words is "five hundred forty million, five hundred seventeen thousand, nine hundred seventeen".