252167689 has 2 divisors, whose sum is σ = 252167690. Its totient is φ = 252167688.

The previous prime is 252167659. The next prime is 252167719. The reversal of 252167689 is 986761252.

It is a balanced prime because it is at equal distance from previous prime (252167659) and next prime (252167719).

It can be written as a sum of positive squares in only one way, i.e., 204004089 + 48163600 = 14283^2 + 6940^2 .

It is a cyclic number.

It is not a de Polignac number, because 252167689 - 2¹³ = 252159497 is a prime.

It is not a weakly prime, because it can be changed into another prime (252167659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126083844 + 126083845.

It is an arithmetic number, because the mean of its divisors is an integer number (126083845).

Almost surely, 2^252167689 is an apocalyptic number.

It is an amenable number.

252167689 is a deficient number, since it is larger than the sum of its proper divisors (1).

252167689 is an equidigital number, since it uses as much as digits as its factorization.

252167689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 46.

The square root of 252167689 is about 15879.7886950677. The cubic root of 252167689 is about 631.7760324076.

The spelling of 252167689 in words is "two hundred fifty-two million, one hundred sixty-seven thousand, six hundred eighty-nine".