30603161 has 2 divisors, whose sum is σ = 30603162. Its totient is φ = 30603160.

The previous prime is 30603137. The next prime is 30603163. The reversal of 30603161 is 16130603.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25563136 + 5040025 = 5056^2 + 2245^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30603161 is a prime.

It is a Sophie Germain prime.

Together with 30603163, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (30603163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15301580 + 15301581.

It is an arithmetic number, because the mean of its divisors is an integer number (15301581).

Almost surely, 2^30603161 is an apocalyptic number.

It is an amenable number.

30603161 is a deficient number, since it is larger than the sum of its proper divisors (1).

30603161 is an equidigital number, since it uses as much as digits as its factorization.

30603161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 30603161 is about 5532.0123824879. The cubic root of 30603161 is about 312.7918502302.

Adding to 30603161 its reverse (16130603), we get a palindrome (46733764).

The spelling of 30603161 in words is "thirty million, six hundred three thousand, one hundred sixty-one".