305452313 has 4 divisors (see below), whose sum is σ = 307475328. Its totient is φ = 303429300.

The previous prime is 305452309. The next prime is 305452319. The reversal of 305452313 is 313254503.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 313254503 = 23 ⋅13619761.

It is a cyclic number.

It is not a de Polignac number, because 305452313 - 2² = 305452309 is a prime.

It is a super-2 number, since 2×305452313² = 186602231034099938, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (305452319) 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 3 ways as a sum of consecutive naturals, for example, 1011281 + ... + 1011582.

It is an arithmetic number, because the mean of its divisors is an integer number (76868832).

Almost surely, 2^305452313 is an apocalyptic number.

It is an amenable number.

305452313 is a deficient number, since it is larger than the sum of its proper divisors (2023015).

305452313 is a wasteful number, since it uses less digits than its factorization.

305452313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2023014.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 305452313 is about 17477.1940825752. The cubic root of 305452313 is about 673.4641352647.

The spelling of 305452313 in words is "three hundred five million, four hundred fifty-two thousand, three hundred thirteen".