252125101 has 4 divisors (see below), whose sum is σ = 260819100. Its totient is φ = 243431104.

The previous prime is 252125053. The next prime is 252125143. The reversal of 252125101 is 101521252.

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 97495876 + 154629225 = 9874^2 + 12435^2 .

It is not a de Polignac number, because 252125101 - 2¹⁹ = 251600813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252125161) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4346956 + ... + 4347013.

It is an arithmetic number, because the mean of its divisors is an integer number (65204775).

Almost surely, 2^252125101 is an apocalyptic number.

It is an amenable number.

252125101 is a deficient number, since it is larger than the sum of its proper divisors (8693999).

252125101 is an equidigital number, since it uses as much as digits as its factorization.

252125101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8693998.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 252125101 is about 15878.4476886124. The cubic root of 252125101 is about 631.7404640223.

Adding to 252125101 its reverse (101521252), we get a palindrome (353646353).

The spelling of 252125101 in words is "two hundred fifty-two million, one hundred twenty-five thousand, one hundred one".