252143042 has 8 divisors (see below), whose sum is σ = 378305100. Its totient is φ = 126041344.

The previous prime is 252143029. The next prime is 252143083. The reversal of 252143042 is 240341252.

It is a happy number.

252143042 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 246521401 + 5621641 = 15701^2 + 2371^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×252143042² = 127152227258027528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 252142999 and 252143017.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2567 + ... + 22602.

Almost surely, 2^252143042 is an apocalyptic number.

252143042 is a deficient number, since it is larger than the sum of its proper divisors (126162058).

252143042 is a wasteful number, since it uses less digits than its factorization.

252143042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30180.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 252143042 is about 15879.0126267347. The cubic root of 252143042 is about 631.7554483651.

Adding to 252143042 its reverse (240341252), we get a palindrome (492484294).

The spelling of 252143042 in words is "two hundred fifty-two million, one hundred forty-three thousand, forty-two".