542142145 has 4 divisors (see below), whose sum is σ = 650570580. Its totient is φ = 433713712.

The previous prime is 542142137. The next prime is 542142163. The reversal of 542142145 is 541241245.

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

It can be written as a sum of positive squares in 2 ways, for example, as 310006449 + 232135696 = 17607^2 + 15236^2 .

It is a cyclic number.

It is not a de Polignac number, because 542142145 - 2³ = 542142137 is a prime.

It is an unprimeable number.

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, 54214210 + ... + 54214219.

It is an arithmetic number, because the mean of its divisors is an integer number (162642645).

Almost surely, 2^542142145 is an apocalyptic number.

It is an amenable number.

542142145 is a deficient number, since it is larger than the sum of its proper divisors (108428435).

542142145 is a wasteful number, since it uses less digits than its factorization.

542142145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108428434.

The product of its digits is 6400, while the sum is 28.

The square root of 542142145 is about 23283.9460787900. The cubic root of 542142145 is about 815.4006561287.

The spelling of 542142145 in words is "five hundred forty-two million, one hundred forty-two thousand, one hundred forty-five".