305545045 has 8 divisors (see below), whose sum is σ = 394858296. Its totient is φ = 225633216.

The previous prime is 305545043. The next prime is 305545067. The reversal of 305545045 is 540545503.

It can be written as a sum of positive squares in 4 ways, for example, as 1077444 + 304467601 = 1038^2 + 17449^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 305545045 - 2¹ = 305545043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 305544998 and 305545016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305545043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2350282 + ... + 2350411.

It is an arithmetic number, because the mean of its divisors is an integer number (49357287).

Almost surely, 2^305545045 is an apocalyptic number.

It is an amenable number.

305545045 is a deficient number, since it is larger than the sum of its proper divisors (89313251).

305545045 is a wasteful number, since it uses less digits than its factorization.

305545045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4700711.

The product of its (nonzero) digits is 30000, while the sum is 31.

The square root of 305545045 is about 17479.8468242717. The cubic root of 305545045 is about 673.5322804980.

The spelling of 305545045 in words is "three hundred five million, five hundred forty-five thousand, forty-five".