252232129 has 2 divisors, whose sum is σ = 252232130. Its totient is φ = 252232128.

The previous prime is 252232091. The next prime is 252232147. The reversal of 252232129 is 921232252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 218359729 + 33872400 = 14777^2 + 5820^2 .

It is a cyclic number.

It is not a de Polignac number, because 252232129 - 2¹⁵ = 252199361 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 252232097 and 252232106.

It is not a weakly prime, because it can be changed into another prime (252232529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126116064 + 126116065.

It is an arithmetic number, because the mean of its divisors is an integer number (126116065).

Almost surely, 2^252232129 is an apocalyptic number.

It is an amenable number.

252232129 is a deficient number, since it is larger than the sum of its proper divisors (1).

252232129 is an equidigital number, since it uses as much as digits as its factorization.

252232129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 28.

The square root of 252232129 is about 15881.8175597127. The cubic root of 252232129 is about 631.8298433991.

The spelling of 252232129 in words is "two hundred fifty-two million, two hundred thirty-two thousand, one hundred twenty-nine".