329140289 has 2 divisors, whose sum is σ = 329140290. Its totient is φ = 329140288.

The previous prime is 329140243. The next prime is 329140297. The reversal of 329140289 is 982041923.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 240498064 + 88642225 = 15508^2 + 9415^2 .

It is a cyclic number.

It is not a de Polignac number, because 329140289 - 2⁸ = 329140033 is a prime.

It is a super-4 number, since 4×329140289⁴ (a number of 35 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (329140219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164570144 + 164570145.

It is an arithmetic number, because the mean of its divisors is an integer number (164570145).

Almost surely, 2^329140289 is an apocalyptic number.

It is an amenable number.

329140289 is a deficient number, since it is larger than the sum of its proper divisors (1).

329140289 is an equidigital number, since it uses as much as digits as its factorization.

329140289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 329140289 is about 18142.2239265201. The cubic root of 329140289 is about 690.4417034606.

The spelling of 329140289 in words is "three hundred twenty-nine million, one hundred forty thousand, two hundred eighty-nine".