252143241 has 16 divisors (see below), whose sum is σ = 389483904. Its totient is φ = 142107264.

The previous prime is 252143179. The next prime is 252143249. The reversal of 252143241 is 142341252.

252143241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 252143241 - 2¹³ = 252135049 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (252143249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80706 + ... + 83771.

It is an arithmetic number, because the mean of its divisors is an integer number (24342744).

Almost surely, 2^252143241 is an apocalyptic number.

252143241 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

252143241 is a deficient number, since it is larger than the sum of its proper divisors (137340663).

252143241 is a wasteful number, since it uses less digits than its factorization.

252143241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164560.

The product of its digits is 1920, while the sum is 24.

The square root of 252143241 is about 15879.0188928661. The cubic root of 252143241 is about 631.7556145662.

Adding to 252143241 its reverse (142341252), we get a palindrome (394484493).

The spelling of 252143241 in words is "two hundred fifty-two million, one hundred forty-three thousand, two hundred forty-one".