252132211 has 4 divisors (see below), whose sum is σ = 254117632. Its totient is φ = 250146792.

The previous prime is 252132173. The next prime is 252132217. The reversal of 252132211 is 112231252.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252132211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252132217) 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, 992520 + ... + 992773.

It is an arithmetic number, because the mean of its divisors is an integer number (63529408).

Almost surely, 2^252132211 is an apocalyptic number.

252132211 is a deficient number, since it is larger than the sum of its proper divisors (1985421).

252132211 is a wasteful number, since it uses less digits than its factorization.

252132211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1985420.

The product of its digits is 240, while the sum is 19.

The square root of 252132211 is about 15878.6715754184. The cubic root of 252132211 is about 631.7464023871.

Adding to 252132211 its reverse (112231252), we get a palindrome (364363463).

The spelling of 252132211 in words is "two hundred fifty-two million, one hundred thirty-two thousand, two hundred eleven".