252220143 has 16 divisors (see below), whose sum is σ = 406944000. Its totient is φ = 135647616.

The previous prime is 252220127. The next prime is 252220147. The reversal of 252220143 is 341022252.

It is not a de Polignac number, because 252220143 - 2⁴ = 252220127 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252220147) 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, 352893 + ... + 353606.

It is an arithmetic number, because the mean of its divisors is an integer number (25434000).

Almost surely, 2^252220143 is an apocalyptic number.

252220143 is a deficient number, since it is larger than the sum of its proper divisors (154723857).

252220143 is a wasteful number, since it uses less digits than its factorization.

252220143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706526.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 252220143 is about 15881.4402054726. The cubic root of 252220143 is about 631.8198351149.

Adding to 252220143 its reverse (341022252), we get a palindrome (593242395).

The spelling of 252220143 in words is "two hundred fifty-two million, two hundred twenty thousand, one hundred forty-three".