252132101 has 4 divisors (see below), whose sum is σ = 271526892. Its totient is φ = 232737312.

The previous prime is 252132059. The next prime is 252132113. The reversal of 252132101 is 101231252.

It is a happy number.

252132101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 33062500 + 219069601 = 5750^2 + 14801^2 .

It is a cyclic number.

It is not a de Polignac number, because 252132101 - 2⁶ = 252132037 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 252132101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252132301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9697376 + ... + 9697401.

It is an arithmetic number, because the mean of its divisors is an integer number (67881723).

Almost surely, 2^252132101 is an apocalyptic number.

It is an amenable number.

252132101 is a deficient number, since it is larger than the sum of its proper divisors (19394791).

252132101 is a wasteful number, since it uses less digits than its factorization.

252132101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19394790.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 252132101 is about 15878.6681116522. The cubic root of 252132101 is about 631.7463105145.

Adding to 252132101 its reverse (101231252), we get a palindrome (353363353).

The spelling of 252132101 in words is "two hundred fifty-two million, one hundred thirty-two thousand, one hundred one".