540628105 has 8 divisors (see below), whose sum is σ = 648901512. Its totient is φ = 432403968.

The previous prime is 540628103. The next prime is 540628111. The reversal of 540628105 is 501826045.

It can be written as a sum of positive squares in 4 ways, for example, as 207821056 + 332807049 = 14416^2 + 18243^2 .

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 540628105 - 2¹ = 540628103 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540628103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19129 + ... + 38041.

It is an arithmetic number, because the mean of its divisors is an integer number (81112689).

Almost surely, 2^540628105 is an apocalyptic number.

It is an amenable number.

540628105 is a deficient number, since it is larger than the sum of its proper divisors (108273407).

540628105 is a wasteful number, since it uses less digits than its factorization.

540628105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24635.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 540628105 is about 23251.4108174106. The cubic root of 540628105 is about 814.6408921389.

The spelling of 540628105 in words is "five hundred forty million, six hundred twenty-eight thousand, one hundred five".