542159865 has 32 divisors (see below), whose sum is σ = 1037984640. Its totient is φ = 266908608.

The previous prime is 542159833. The next prime is 542159873. The reversal of 542159865 is 568951245.

542159865 is a `hidden beast` number, since 54 + 2 + 1 + 598 + 6 + 5 = 666.

It is not a de Polignac number, because 542159865 - 2⁵ = 542159833 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 542159865.

It is an unprimeable number.

It is an upside-down number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 152707 + ... + 156216.

It is an arithmetic number, because the mean of its divisors is an integer number (32437020).

Almost surely, 2^542159865 is an apocalyptic number.

It is an amenable number.

542159865 is a deficient number, since it is larger than the sum of its proper divisors (495824775).

542159865 is a wasteful number, since it uses less digits than its factorization.

542159865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308950 (or 308944 counting only the distinct ones).

The product of its digits is 432000, while the sum is 45.

The square root of 542159865 is about 23284.3265953731. The cubic root of 542159865 is about 815.4095398642.

The spelling of 542159865 in words is "five hundred forty-two million, one hundred fifty-nine thousand, eight hundred sixty-five".