340000253 has 2 divisors, whose sum is σ = 340000254. Its totient is φ = 340000252.

The previous prime is 340000217. The next prime is 340000259. The reversal of 340000253 is 352000043.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 339922969 + 77284 = 18437^2 + 278^2 .

It is a cyclic number.

It is not a de Polignac number, because 340000253 - 2⁶ = 340000189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340000259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170000126 + 170000127.

It is an arithmetic number, because the mean of its divisors is an integer number (170000127).

Almost surely, 2^340000253 is an apocalyptic number.

It is an amenable number.

340000253 is a deficient number, since it is larger than the sum of its proper divisors (1).

340000253 is an equidigital number, since it uses as much as digits as its factorization.

340000253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 340000253 is about 18439.0957750102. The cubic root of 340000253 is about 697.9533778106.

Adding to 340000253 its reverse (352000043), we get a palindrome (692000296).

The spelling of 340000253 in words is "three hundred forty million, two hundred fifty-three", and thus it is an aban number.