514727909 has 2 divisors, whose sum is σ = 514727910. Its totient is φ = 514727908.

The previous prime is 514727809. The next prime is 514727911. The reversal of 514727909 is 909727415.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 411197284 + 103530625 = 20278^2 + 10175^2 .

It is a cyclic number.

It is not a de Polignac number, because 514727909 - 2²⁴ = 497950693 is a prime.

Together with 514727911, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 514727909.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (514727509) 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, 257363954 + 257363955.

It is an arithmetic number, because the mean of its divisors is an integer number (257363955).

Almost surely, 2^514727909 is an apocalyptic number.

It is an amenable number.

514727909 is a deficient number, since it is larger than the sum of its proper divisors (1).

514727909 is an equidigital number, since it uses as much as digits as its factorization.

514727909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 158760, while the sum is 44.

The square root of 514727909 is about 22687.6157627901. The cubic root of 514727909 is about 801.4182700891.

The spelling of 514727909 in words is "five hundred fourteen million, seven hundred twenty-seven thousand, nine hundred nine".