30974159 has 2 divisors, whose sum is σ = 30974160. Its totient is φ = 30974158.

The previous prime is 30974149. The next prime is 30974173. The reversal of 30974159 is 95147903.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (95147903) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30974159 - 2¹⁶ = 30908623 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30974149) 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, 15487079 + 15487080.

It is an arithmetic number, because the mean of its divisors is an integer number (15487080).

Almost surely, 2^30974159 is an apocalyptic number.

30974159 is a deficient number, since it is larger than the sum of its proper divisors (1).

30974159 is an equidigital number, since it uses as much as digits as its factorization.

30974159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 30974159 is about 5565.4432887237. The cubic root of 30974159 is about 314.0507545041.

The spelling of 30974159 in words is "thirty million, nine hundred seventy-four thousand, one hundred fifty-nine".