540919601 has 4 divisors (see below), whose sum is σ = 554112804. Its totient is φ = 527726400.

The previous prime is 540919597. The next prime is 540919657. The reversal of 540919601 is 106919045.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 264030001 + 276889600 = 16249^2 + 16640^2 .

It is a cyclic number.

It is not a de Polignac number, because 540919601 - 2² = 540919597 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540912601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6596540 + ... + 6596621.

It is an arithmetic number, because the mean of its divisors is an integer number (138528201).

Almost surely, 2^540919601 is an apocalyptic number.

It is an amenable number.

540919601 is a deficient number, since it is larger than the sum of its proper divisors (13193203).

540919601 is a wasteful number, since it uses less digits than its factorization.

540919601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13193202.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 540919601 is about 23257.6783235129. The cubic root of 540919601 is about 814.7872785941.

The spelling of 540919601 in words is "five hundred forty million, nine hundred nineteen thousand, six hundred one".