511434997 has 2 divisors, whose sum is σ = 511434998. Its totient is φ = 511434996.

The previous prime is 511434983. The next prime is 511435033. The reversal of 511434997 is 799434115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 503822916 + 7612081 = 22446^2 + 2759^2 .

It is a cyclic number.

It is not a de Polignac number, because 511434997 - 2²³ = 503046389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (511434947) 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, 255717498 + 255717499.

It is an arithmetic number, because the mean of its divisors is an integer number (255717499).

Almost surely, 2^511434997 is an apocalyptic number.

It is an amenable number.

511434997 is a deficient number, since it is larger than the sum of its proper divisors (1).

511434997 is an equidigital number, since it uses as much as digits as its factorization.

511434997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 43.

The square root of 511434997 is about 22614.9286313267. The cubic root of 511434997 is about 799.7056192925.

The spelling of 511434997 in words is "five hundred eleven million, four hundred thirty-four thousand, nine hundred ninety-seven".