540144205 has 8 divisors (see below), whose sum is σ = 648772632. Its totient is φ = 431715648.

The previous prime is 540144197. The next prime is 540144211. The reversal of 540144205 is 502441045.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 331312804 + 208831401 = 18202^2 + 14451^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 540144205 - 2³ = 540144197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 540144205.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 43954 + ... + 54883.

It is an arithmetic number, because the mean of its divisors is an integer number (81096579).

Almost surely, 2^540144205 is an apocalyptic number.

It is an amenable number.

540144205 is a deficient number, since it is larger than the sum of its proper divisors (108628427).

540144205 is a wasteful number, since it uses less digits than its factorization.

540144205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99935.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 540144205 is about 23241.0026676992. The cubic root of 540144205 is about 814.3977660440.

The spelling of 540144205 in words is "five hundred forty million, one hundred forty-four thousand, two hundred five".