305145364 has 12 divisors (see below), whose sum is σ = 548437204. Its totient is φ = 148449024.

The previous prime is 305145353. The next prime is 305145367. The reversal of 305145364 is 463541503.

It can be written as a sum of positive squares in 2 ways, for example, as 278622864 + 26522500 = 16692^2 + 5150^2 .

It is a super-2 number, since 2×305145364² = 186227386341384992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305145367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1030749 + ... + 1031044.

Almost surely, 2^305145364 is an apocalyptic number.

It is an amenable number.

305145364 is a deficient number, since it is larger than the sum of its proper divisors (243291840).

305145364 is a wasteful number, since it uses less digits than its factorization.

305145364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2061834 (or 2061832 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 305145364 is about 17468.4104600276. The cubic root of 305145364 is about 673.2384716431.

Adding to 305145364 its reverse (463541503), we get a palindrome (768686867).

The spelling of 305145364 in words is "three hundred five million, one hundred forty-five thousand, three hundred sixty-four".