252240349 has 2 divisors, whose sum is σ = 252240350. Its totient is φ = 252240348.

The previous prime is 252240343. The next prime is 252240367. The reversal of 252240349 is 943042252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 181764324 + 70476025 = 13482^2 + 8395^2 .

It is a cyclic number.

It is not a de Polignac number, because 252240349 - 2¹³ = 252232157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 252240349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252240343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126120174 + 126120175.

It is an arithmetic number, because the mean of its divisors is an integer number (126120175).

Almost surely, 2^252240349 is an apocalyptic number.

It is an amenable number.

252240349 is a deficient number, since it is larger than the sum of its proper divisors (1).

252240349 is an equidigital number, since it uses as much as digits as its factorization.

252240349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 252240349 is about 15882.0763441056. The cubic root of 252240349 is about 631.8367068981.

The spelling of 252240349 in words is "two hundred fifty-two million, two hundred forty thousand, three hundred forty-nine".