30421169 has 2 divisors, whose sum is σ = 30421170. Its totient is φ = 30421168.

The previous prime is 30421163. The next prime is 30421201. The reversal of 30421169 is 96112403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21270544 + 9150625 = 4612^2 + 3025^2 .

It is a cyclic number.

It is not a de Polignac number, because 30421169 - 2²⁴ = 13643953 is a prime.

It is a super-2 number, since 2×30421169² = 1850895046653122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (30421163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15210584 + 15210585.

It is an arithmetic number, because the mean of its divisors is an integer number (15210585).

Almost surely, 2^30421169 is an apocalyptic number.

It is an amenable number.

30421169 is a deficient number, since it is larger than the sum of its proper divisors (1).

30421169 is an equidigital number, since it uses as much as digits as its factorization.

30421169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 30421169 is about 5515.5388675994. The cubic root of 30421169 is about 312.1705763783.

The spelling of 30421169 in words is "thirty million, four hundred twenty-one thousand, one hundred sixty-nine".