252430069 has 2 divisors, whose sum is σ = 252430070. Its totient is φ = 252430068.

The previous prime is 252430051. The next prime is 252430097. The reversal of 252430069 is 960034252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 243048100 + 9381969 = 15590^2 + 3063^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252430069 is a prime.

It is a super-2 number, since 2×252430069² = 127441879470689522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 252430069.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252430049) 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, 126215034 + 126215035.

It is an arithmetic number, because the mean of its divisors is an integer number (126215035).

Almost surely, 2^252430069 is an apocalyptic number.

It is an amenable number.

252430069 is a deficient number, since it is larger than the sum of its proper divisors (1).

252430069 is an equidigital number, since it uses as much as digits as its factorization.

252430069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 252430069 is about 15888.0479921229. The cubic root of 252430069 is about 631.9950770393.

The spelling of 252430069 in words is "two hundred fifty-two million, four hundred thirty thousand, sixty-nine".