30145169 has 2 divisors, whose sum is σ = 30145170. Its totient is φ = 30145168.

The previous prime is 30145151. The next prime is 30145207. The reversal of 30145169 is 96154103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19009600 + 11135569 = 4360^2 + 3337^2 .

It is a cyclic number.

It is not a de Polignac number, because 30145169 - 2⁸ = 30144913 is a prime.

It is a super-2 number, since 2×30145169² = 1817462428077122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30145139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15072584 + 15072585.

It is an arithmetic number, because the mean of its divisors is an integer number (15072585).

Almost surely, 2^30145169 is an apocalyptic number.

It is an amenable number.

30145169 is a deficient number, since it is larger than the sum of its proper divisors (1).

30145169 is an equidigital number, since it uses as much as digits as its factorization.

30145169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 30145169 is about 5490.4616381503. The cubic root of 30145169 is about 311.2236374934.

The spelling of 30145169 in words is "thirty million, one hundred forty-five thousand, one hundred sixty-nine".