540120387 has 4 divisors (see below), whose sum is σ = 720160520. Its totient is φ = 360080256.

The previous prime is 540120367. The next prime is 540120401. The reversal of 540120387 is 783021045.

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

It is not a de Polignac number, because 540120387 - 2¹⁴ = 540104003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540120307) 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 3 ways as a sum of consecutive naturals, for example, 90020062 + ... + 90020067.

It is an arithmetic number, because the mean of its divisors is an integer number (180040130).

Almost surely, 2^540120387 is an apocalyptic number.

540120387 is a deficient number, since it is larger than the sum of its proper divisors (180040133).

540120387 is a wasteful number, since it uses less digits than its factorization.

540120387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180040132.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 540120387 is about 23240.4902487017. The cubic root of 540120387 is about 814.3857954067.

The spelling of 540120387 in words is "five hundred forty million, one hundred twenty thousand, three hundred eighty-seven".