305060081 has 2 divisors, whose sum is σ = 305060082. Its totient is φ = 305060080.

The previous prime is 305060059. The next prime is 305060089. The reversal of 305060081 is 180060503.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 305026225 + 33856 = 17465^2 + 184^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-305060081 is a prime.

It is a super-2 number, since 2×305060081² = 186123306039453122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (305060089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152530040 + 152530041.

It is an arithmetic number, because the mean of its divisors is an integer number (152530041).

Almost surely, 2^305060081 is an apocalyptic number.

It is an amenable number.

305060081 is a deficient number, since it is larger than the sum of its proper divisors (1).

305060081 is an equidigital number, since it uses as much as digits as its factorization.

305060081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 305060081 is about 17465.9692258975. The cubic root of 305060081 is about 673.1757461871.

The spelling of 305060081 in words is "three hundred five million, sixty thousand, eighty-one".