252143415 has 16 divisors (see below), whose sum is σ = 448255200. Its totient is φ = 134476416.

The previous prime is 252143407. The next prime is 252143453. The reversal of 252143415 is 514341252.

It is not a de Polignac number, because 252143415 - 2³ = 252143407 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 933730 + ... + 933999.

It is an arithmetic number, because the mean of its divisors is an integer number (28015950).

Almost surely, 2^252143415 is an apocalyptic number.

252143415 is a deficient number, since it is larger than the sum of its proper divisors (196111785).

252143415 is a wasteful number, since it uses less digits than its factorization.

252143415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1867743 (or 1867737 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 252143415 is about 15879.0243717931. The cubic root of 252143415 is about 631.7557598876.

Adding to 252143415 its reverse (514341252), we get a palindrome (766484667).

The spelling of 252143415 in words is "two hundred fifty-two million, one hundred forty-three thousand, four hundred fifteen".