334142509 has 2 divisors, whose sum is σ = 334142510. Its totient is φ = 334142508.

The previous prime is 334142491. The next prime is 334142519. The reversal of 334142509 is 905241433.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 178142409 + 156000100 = 13347^2 + 12490^2 .

It is a cyclic number.

It is not a de Polignac number, because 334142509 - 2⁵ = 334142477 is a prime.

It is a super-2 number, since 2×334142509² = 223302432641630162, 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 (334142519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167071254 + 167071255.

It is an arithmetic number, because the mean of its divisors is an integer number (167071255).

Almost surely, 2^334142509 is an apocalyptic number.

It is an amenable number.

334142509 is a deficient number, since it is larger than the sum of its proper divisors (1).

334142509 is an equidigital number, since it uses as much as digits as its factorization.

334142509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 334142509 is about 18279.5653394713. The cubic root of 334142509 is about 693.9218720444.

The spelling of 334142509 in words is "three hundred thirty-four million, one hundred forty-two thousand, five hundred nine".