542531342 has 4 divisors (see below), whose sum is σ = 813797016. Its totient is φ = 271265670.

The previous prime is 542531303. The next prime is 542531357. The reversal of 542531342 is 243135245.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 243135245 = 5 ⋅48627049.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135632834 + ... + 135632837.

It is an arithmetic number, because the mean of its divisors is an integer number (203449254).

Almost surely, 2^542531342 is an apocalyptic number.

542531342 is a deficient number, since it is larger than the sum of its proper divisors (271265674).

542531342 is a wasteful number, since it uses less digits than its factorization.

542531342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271265673.

The product of its digits is 14400, while the sum is 29.

The square root of 542531342 is about 23292.3022048058. The cubic root of 542531342 is about 815.5957314003.

Adding to 542531342 its reverse (243135245), we get a palindrome (785666587).

The spelling of 542531342 in words is "five hundred forty-two million, five hundred thirty-one thousand, three hundred forty-two".