305142713 has 2 divisors, whose sum is σ = 305142714. Its totient is φ = 305142712.

The previous prime is 305142689. The next prime is 305142743. The reversal of 305142713 is 317241503.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 279458089 + 25684624 = 16717^2 + 5068^2 .

It is an emirp because it is prime and its reverse (317241503) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 305142713 - 2¹⁰ = 305141689 is a prime.

It is a super-2 number, since 2×305142713² = 186224150594000738, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (305142743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152571356 + 152571357.

It is an arithmetic number, because the mean of its divisors is an integer number (152571357).

Almost surely, 2^305142713 is an apocalyptic number.

It is an amenable number.

305142713 is a deficient number, since it is larger than the sum of its proper divisors (1).

305142713 is an equidigital number, since it uses as much as digits as its factorization.

305142713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 305142713 is about 17468.3345800337. The cubic root of 305142713 is about 673.2365220145.

The spelling of 305142713 in words is "three hundred five million, one hundred forty-two thousand, seven hundred thirteen".