434102509 has 2 divisors, whose sum is σ = 434102510. Its totient is φ = 434102508.

The previous prime is 434102491. The next prime is 434102549. The reversal of 434102509 is 905201434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 399880009 + 34222500 = 19997^2 + 5850^2 .

It is a cyclic number.

It is not a de Polignac number, because 434102509 - 2⁵ = 434102477 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (434102549) 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, 217051254 + 217051255.

It is an arithmetic number, because the mean of its divisors is an integer number (217051255).

Almost surely, 2^434102509 is an apocalyptic number.

It is an amenable number.

434102509 is a deficient number, since it is larger than the sum of its proper divisors (1).

434102509 is an equidigital number, since it uses as much as digits as its factorization.

434102509 is an odious number, because the sum of its binary digits is odd.

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

The square root of 434102509 is about 20835.1268054697. The cubic root of 434102509 is about 757.1770324587.

The spelling of 434102509 in words is "four hundred thirty-four million, one hundred two thousand, five hundred nine".