243532142 has 32 divisors (see below), whose sum is σ = 436810752. Its totient is φ = 99563904.

The previous prime is 243532141. The next prime is 243532151. The reversal of 243532142 is 241235342.

It is a super-3 number, since 3×243532142³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243532141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156038 + ... + 157590.

It is an arithmetic number, because the mean of its divisors is an integer number (13650336).

Almost surely, 2^243532142 is an apocalyptic number.

243532142 is a deficient number, since it is larger than the sum of its proper divisors (193278610).

243532142 is a wasteful number, since it uses less digits than its factorization.

243532142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2072.

The product of its digits is 5760, while the sum is 26.

The square root of 243532142 is about 15605.5163964542. The cubic root of 243532142 is about 624.4803292007.

Adding to 243532142 its reverse (241235342), we get a palindrome (484767484).

The spelling of 243532142 in words is "two hundred forty-three million, five hundred thirty-two thousand, one hundred forty-two".