542131043 has 4 divisors (see below), whose sum is σ = 542465880. Its totient is φ = 541796208.

The previous prime is 542131001. The next prime is 542131061. The reversal of 542131043 is 340131245.

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 542131043 - 2¹⁶ = 542065507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542131243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164978 + ... + 168231.

It is an arithmetic number, because the mean of its divisors is an integer number (135616470).

Almost surely, 2^542131043 is an apocalyptic number.

542131043 is a deficient number, since it is larger than the sum of its proper divisors (334837).

542131043 is a wasteful number, since it uses less digits than its factorization.

542131043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334836.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 542131043 is about 23283.7076729631. The cubic root of 542131043 is about 815.3950901592.

Adding to 542131043 its reverse (340131245), we get a palindrome (882262288).

The spelling of 542131043 in words is "five hundred forty-two million, one hundred thirty-one thousand, forty-three".