30161069 has 2 divisors, whose sum is σ = 30161070. Its totient is φ = 30161068.

The previous prime is 30161059. The next prime is 30161099. The reversal of 30161069 is 96016103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19695844 + 10465225 = 4438^2 + 3235^2 .

It is an emirp because it is prime and its reverse (96016103) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30161069 is a prime.

It is a super-2 number, since 2×30161069² = 1819380166445522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30161029) 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, 15080534 + 15080535.

It is an arithmetic number, because the mean of its divisors is an integer number (15080535).

Almost surely, 2^30161069 is an apocalyptic number.

It is an amenable number.

30161069 is a deficient number, since it is larger than the sum of its proper divisors (1).

30161069 is an equidigital number, since it uses as much as digits as its factorization.

30161069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 30161069 is about 5491.9094129456. The cubic root of 30161069 is about 311.2783459397.

The spelling of 30161069 in words is "thirty million, one hundred sixty-one thousand, sixty-nine".