30069961 has 2 divisors, whose sum is σ = 30069962. Its totient is φ = 30069960.

The previous prime is 30069959. The next prime is 30069967. The reversal of 30069961 is 16996003.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29909961 + 160000 = 5469^2 + 400^2 .

It is a cyclic number.

It is not a de Polignac number, because 30069961 - 2¹ = 30069959 is a prime.

Together with 30069959, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (30069967) 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, 15034980 + 15034981.

It is an arithmetic number, because the mean of its divisors is an integer number (15034981).

Almost surely, 2^30069961 is an apocalyptic number.

It is an amenable number.

30069961 is a deficient number, since it is larger than the sum of its proper divisors (1).

30069961 is an equidigital number, since it uses as much as digits as its factorization.

30069961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 30069961 is about 5483.6083922906. The cubic root of 30069961 is about 310.9646020719.

The spelling of 30069961 in words is "thirty million, sixty-nine thousand, nine hundred sixty-one".