542342831 has 4 divisors (see below), whose sum is σ = 547712664. Its totient is φ = 536973000.

The previous prime is 542342803. The next prime is 542342839. The reversal of 542342831 is 138243245.

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

It is a cyclic number.

It is not a de Polignac number, because 542342831 - 2⁶ = 542342767 is a prime.

It is a super-2 number, since 2×542342831² = 588271492674189122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542342839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2684765 + ... + 2684966.

It is an arithmetic number, because the mean of its divisors is an integer number (136928166).

Almost surely, 2^542342831 is an apocalyptic number.

542342831 is a deficient number, since it is larger than the sum of its proper divisors (5369833).

542342831 is a wasteful number, since it uses less digits than its factorization.

542342831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5369832.

The product of its digits is 23040, while the sum is 32.

The square root of 542342831 is about 23288.2552158808. The cubic root of 542342831 is about 815.5012566263.

The spelling of 542342831 in words is "five hundred forty-two million, three hundred forty-two thousand, eight hundred thirty-one".