30141689 has 2 divisors, whose sum is σ = 30141690. Its totient is φ = 30141688.

The previous prime is 30141673. The next prime is 30141691. The reversal of 30141689 is 98614103.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30063289 + 78400 = 5483^2 + 280^2 .

It is a cyclic number.

It is not a de Polignac number, because 30141689 - 2⁴ = 30141673 is a prime.

Together with 30141691, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30141649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15070844 + 15070845.

It is an arithmetic number, because the mean of its divisors is an integer number (15070845).

Almost surely, 2^30141689 is an apocalyptic number.

It is an amenable number.

30141689 is a deficient number, since it is larger than the sum of its proper divisors (1).

30141689 is an equidigital number, since it uses as much as digits as its factorization.

30141689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 30141689 is about 5490.1447157611. The cubic root of 30141689 is about 311.2116610035.

The spelling of 30141689 in words is "thirty million, one hundred forty-one thousand, six hundred eighty-nine".