30040169 has 2 divisors, whose sum is σ = 30040170. Its totient is φ = 30040168.

The previous prime is 30040151. The next prime is 30040177. The reversal of 30040169 is 96104003.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29300569 + 739600 = 5413^2 + 860^2 .

It is an emirp because it is prime and its reverse (96104003) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30040169 - 2⁸ = 30039913 is a prime.

It is a super-2 number, since 2×30040169² = 1804823507097122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30040069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15020084 + 15020085.

It is an arithmetic number, because the mean of its divisors is an integer number (15020085).

Almost surely, 2^30040169 is an apocalyptic number.

It is an amenable number.

30040169 is a deficient number, since it is larger than the sum of its proper divisors (1).

30040169 is an equidigital number, since it uses as much as digits as its factorization.

30040169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 30040169 is about 5480.8912596402. The cubic root of 30040169 is about 310.8618714359.

The spelling of 30040169 in words is "thirty million, forty thousand, one hundred sixty-nine".