252144001 has 4 divisors (see below), whose sum is σ = 252760900. Its totient is φ = 251527104.

The previous prime is 252143989. The next prime is 252144023. The reversal of 252144001 is 100441252.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 179024400 + 73119601 = 13380^2 + 8551^2 .

It is a cyclic number.

It is not a de Polignac number, because 252144001 - 2¹³ = 252135809 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 252144001.

It is not an unprimeable number, because it can be changed into a prime (252144071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307836 + ... + 308653.

It is an arithmetic number, because the mean of its divisors is an integer number (63190225).

Almost surely, 2^252144001 is an apocalyptic number.

It is an amenable number.

252144001 is a deficient number, since it is larger than the sum of its proper divisors (616899).

252144001 is an equidigital number, since it uses as much as digits as its factorization.

252144001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616898.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 252144001 is about 15879.0428237977. The cubic root of 252144001 is about 631.7562493030.

Adding to 252144001 its reverse (100441252), we get a palindrome (352585253).

The spelling of 252144001 in words is "two hundred fifty-two million, one hundred forty-four thousand, one".