30085169 has 2 divisors, whose sum is σ = 30085170. Its totient is φ = 30085168.

The previous prime is 30085163. The next prime is 30085177. The reversal of 30085169 is 96158003.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24850225 + 5234944 = 4985^2 + 2288^2 .

It is a cyclic number.

It is not a de Polignac number, because 30085169 - 2⁸ = 30084913 is a prime.

It is a super-2 number, since 2×30085169² = 1810234787517122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30085163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15042584 + 15042585.

It is an arithmetic number, because the mean of its divisors is an integer number (15042585).

Almost surely, 2^30085169 is an apocalyptic number.

It is an amenable number.

30085169 is a deficient number, since it is larger than the sum of its proper divisors (1).

30085169 is an equidigital number, since it uses as much as digits as its factorization.

30085169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 30085169 is about 5484.9948951663. The cubic root of 30085169 is about 311.0170170898.

The spelling of 30085169 in words is "thirty million, eighty-five thousand, one hundred sixty-nine".