542165818 has 8 divisors (see below), whose sum is σ = 813822912. Its totient is φ = 270891516.

The previous prime is 542165803. The next prime is 542165843. The reversal of 542165818 is 818561245.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92130 + ... + 97837.

It is an arithmetic number, because the mean of its divisors is an integer number (101727864).

Almost surely, 2^542165818 is an apocalyptic number.

542165818 is a deficient number, since it is larger than the sum of its proper divisors (271657094).

542165818 is a wasteful number, since it uses less digits than its factorization.

542165818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191396.

The product of its digits is 76800, while the sum is 40.

The square root of 542165818 is about 23284.4544277937. The cubic root of 542165818 is about 815.4125242946.

The spelling of 542165818 in words is "five hundred forty-two million, one hundred sixty-five thousand, eight hundred eighteen".