540421545 has 16 divisors (see below), whose sum is σ = 868557312. Its totient is φ = 286930560.

The previous prime is 540421537. The next prime is 540421573. The reversal of 540421545 is 545124045.

It is not a de Polignac number, because 540421545 - 2³ = 540421537 is a prime.

It is a Curzon 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 15 ways as a sum of consecutive naturals, for example, 77436 + ... + 84125.

It is an arithmetic number, because the mean of its divisors is an integer number (54284832).

Almost surely, 2^540421545 is an apocalyptic number.

It is an amenable number.

540421545 is a deficient number, since it is larger than the sum of its proper divisors (328135767).

540421545 is a wasteful number, since it uses less digits than its factorization.

540421545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161792.

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 540421545 is about 23246.9685120447. The cubic root of 540421545 is about 814.5371278590.

The spelling of 540421545 in words is "five hundred forty million, four hundred twenty-one thousand, five hundred forty-five".