339142681 has 2 divisors, whose sum is σ = 339142682. Its totient is φ = 339142680.

The previous prime is 339142667. The next prime is 339142691. The reversal of 339142681 is 186241933.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 270931600 + 68211081 = 16460^2 + 8259^2 .

It is a cyclic number.

It is not a de Polignac number, because 339142681 - 2⁹ = 339142169 is a prime.

It is a super-2 number, since 2×339142681² = 230035516151735522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 339142681.

It is not a weakly prime, because it can be changed into another prime (339142691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169571340 + 169571341.

It is an arithmetic number, because the mean of its divisors is an integer number (169571341).

Almost surely, 2^339142681 is an apocalyptic number.

It is an amenable number.

339142681 is a deficient number, since it is larger than the sum of its proper divisors (1).

339142681 is an equidigital number, since it uses as much as digits as its factorization.

339142681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 37.

The square root of 339142681 is about 18415.8269159981. The cubic root of 339142681 is about 697.3660750995.

The spelling of 339142681 in words is "three hundred thirty-nine million, one hundred forty-two thousand, six hundred eighty-one".