252808189 has 2 divisors, whose sum is σ = 252808190. Its totient is φ = 252808188.

The previous prime is 252808183. The next prime is 252808261. The reversal of 252808189 is 981808252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 248220025 + 4588164 = 15755^2 + 2142^2 .

It is a cyclic number.

It is not a de Polignac number, because 252808189 - 2¹⁹ = 252283901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252808183) 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 as a sum of consecutive naturals, namely, 126404094 + 126404095.

It is an arithmetic number, because the mean of its divisors is an integer number (126404095).

Almost surely, 2^252808189 is an apocalyptic number.

It is an amenable number.

252808189 is a deficient number, since it is larger than the sum of its proper divisors (1).

252808189 is an equidigital number, since it uses as much as digits as its factorization.

252808189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 92160, while the sum is 43.

The square root of 252808189 is about 15899.9430502125. The cubic root of 252808189 is about 632.3104789239.

The spelling of 252808189 in words is "two hundred fifty-two million, eight hundred eight thousand, one hundred eighty-nine".