543240142 has 16 divisors (see below), whose sum is σ = 852679872. Its totient is φ = 259290720.

The previous prime is 543240133. The next prime is 543240149. The reversal of 543240142 is 241042345.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (543240149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65334 + ... + 73177.

It is an arithmetic number, because the mean of its divisors is an integer number (53292492).

Almost surely, 2^543240142 is an apocalyptic number.

543240142 is a deficient number, since it is larger than the sum of its proper divisors (309439730).

543240142 is a wasteful number, since it uses less digits than its factorization.

543240142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138603.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 543240142 is about 23307.5125656943. The cubic root of 543240142 is about 815.9507601567.

Adding to 543240142 its reverse (241042345), we get a palindrome (784282487).

The spelling of 543240142 in words is "five hundred forty-three million, two hundred forty thousand, one hundred forty-two".