30068581 has 2 divisors, whose sum is σ = 30068582. Its totient is φ = 30068580.

The previous prime is 30068569. The next prime is 30068593. The reversal of 30068581 is 18586003.

It is a balanced prime because it is at equal distance from previous prime (30068569) and next prime (30068593).

It can be written as a sum of positive squares in only one way, i.e., 29528356 + 540225 = 5434^2 + 735^2 .

It is a cyclic number.

It is not a de Polignac number, because 30068581 - 2¹³ = 30060389 is a prime.

It is a super-2 number, since 2×30068581² = 1808239126707122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30068081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15034290 + 15034291.

It is an arithmetic number, because the mean of its divisors is an integer number (15034291).

Almost surely, 2^30068581 is an apocalyptic number.

It is an amenable number.

30068581 is a deficient number, since it is larger than the sum of its proper divisors (1).

30068581 is an equidigital number, since it uses as much as digits as its factorization.

30068581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 30068581 is about 5483.4825612926. The cubic root of 30068581 is about 310.9598449688.

The spelling of 30068581 in words is "thirty million, sixty-eight thousand, five hundred eighty-one".