305351013 has 16 divisors (see below), whose sum is σ = 463458816. Its totient is φ = 177014640.

The previous prime is 305351009. The next prime is 305351017. The reversal of 305351013 is 310153503.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (305351009) and next prime (305351017).

It is not a de Polignac number, because 305351013 - 2² = 305351009 is a prime.

It is a super-2 number, since 2×305351013² = 186478482280252338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305351017) 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 in 15 ways as a sum of consecutive naturals, for example, 200395 + ... + 201912.

It is an arithmetic number, because the mean of its divisors is an integer number (28966176).

Almost surely, 2^305351013 is an apocalyptic number.

305351013 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

305351013 is a deficient number, since it is larger than the sum of its proper divisors (158107803).

305351013 is a wasteful number, since it uses less digits than its factorization.

305351013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402344.

The product of its (nonzero) digits is 675, while the sum is 21.

The square root of 305351013 is about 17474.2957798018. The cubic root of 305351013 is about 673.3896779686.

The spelling of 305351013 in words is "three hundred five million, three hundred fifty-one thousand, thirteen".