540986245 has 4 divisors (see below), whose sum is σ = 649183500. Its totient is φ = 432788992.

The previous prime is 540986219. The next prime is 540986249. The reversal of 540986245 is 542689045.

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 424648449 + 116337796 = 20607^2 + 10786^2 .

It is a cyclic number.

It is not a de Polignac number, because 540986245 - 2¹⁷ = 540855173 is a prime.

It is a super-2 number, since 2×540986245² = 585332234558400050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540986249) 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, 54098620 + ... + 54098629.

It is an arithmetic number, because the mean of its divisors is an integer number (162295875).

Almost surely, 2^540986245 is an apocalyptic number.

It is an amenable number.

540986245 is a deficient number, since it is larger than the sum of its proper divisors (108197255).

540986245 is a wasteful number, since it uses less digits than its factorization.

540986245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108197254.

The product of its (nonzero) digits is 345600, while the sum is 43.

The square root of 540986245 is about 23259.1110105266. Note that the first 3 decimals coincide. The cubic root of 540986245 is about 814.8207391758.

The spelling of 540986245 in words is "five hundred forty million, nine hundred eighty-six thousand, two hundred forty-five".