334140509 has 2 divisors, whose sum is σ = 334140510. Its totient is φ = 334140508.

The previous prime is 334140503. The next prime is 334140551. The reversal of 334140509 is 905041433.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 334085284 + 55225 = 18278^2 + 235^2 .

It is an emirp because it is prime and its reverse (905041433) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-334140509 is a prime.

It is a super-2 number, since 2×334140509² = 223299759509558162, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (334140503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167070254 + 167070255.

It is an arithmetic number, because the mean of its divisors is an integer number (167070255).

Almost surely, 2^334140509 is an apocalyptic number.

It is an amenable number.

334140509 is a deficient number, since it is larger than the sum of its proper divisors (1).

334140509 is an equidigital number, since it uses as much as digits as its factorization.

334140509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 334140509 is about 18279.5106334934. The cubic root of 334140509 is about 693.9204875588.

The spelling of 334140509 in words is "three hundred thirty-four million, one hundred forty thousand, five hundred nine".