540881577 has 32 divisors (see below), whose sum is σ = 829445760. Its totient is φ = 348079680.

The previous prime is 540881573. The next prime is 540881587. The reversal of 540881577 is 775188045.

It is a happy number.

It is not a de Polignac number, because 540881577 - 2² = 540881573 is a prime.

It is not an unprimeable number, because it can be changed into a prime (540881573) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 128803 + ... + 132935.

It is an arithmetic number, because the mean of its divisors is an integer number (25920180).

Almost surely, 2^540881577 is an apocalyptic number.

It is an amenable number.

540881577 is a deficient number, since it is larger than the sum of its proper divisors (288564183).

540881577 is a wasteful number, since it uses less digits than its factorization.

540881577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4310 (or 4304 counting only the distinct ones).

The product of its (nonzero) digits is 313600, while the sum is 45.

The square root of 540881577 is about 23256.8608586800. The cubic root of 540881577 is about 814.7681862943.

The spelling of 540881577 in words is "five hundred forty million, eight hundred eighty-one thousand, five hundred seventy-seven".