252142347 has 8 divisors (see below), whose sum is σ = 337950720. Its totient is φ = 167214440.

The previous prime is 252142343. The next prime is 252142361. The reversal of 252142347 is 743241252.

252142347 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 252142347 - 2² = 252142343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (252142343) 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, 219447 + ... + 220592.

It is an arithmetic number, because the mean of its divisors is an integer number (42243840).

Almost surely, 2^252142347 is an apocalyptic number.

252142347 is a deficient number, since it is larger than the sum of its proper divisors (85808373).

252142347 is a wasteful number, since it uses less digits than its factorization.

252142347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440233.

The product of its digits is 13440, while the sum is 30.

The square root of 252142347 is about 15878.9907424874. The cubic root of 252142347 is about 631.7548679136.

Adding to 252142347 its reverse (743241252), we get a palindrome (995383599).

The spelling of 252142347 in words is "two hundred fifty-two million, one hundred forty-two thousand, three hundred forty-seven".