4545172305 has 48 divisors (see below), whose sum is σ = 8528060160. Its totient is φ = 2296483488.

The previous prime is 4545172279. The next prime is 4545172319. The reversal of 4545172305 is 5032715454.

4545172305 is a `hidden beast` number, since 454 + 5 + 172 + 30 + 5 = 666.

It is not a de Polignac number, because 4545172305 - 2¹² = 4545168209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4545172305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2104 + ... + 95366.

It is an arithmetic number, because the mean of its divisors is an integer number (177667920).

Almost surely, 2^4545172305 is an apocalyptic number.

4545172305 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4545172305 is a deficient number, since it is larger than the sum of its proper divisors (3982887855).

4545172305 is a wasteful number, since it uses less digits than its factorization.

4545172305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93315 (or 93290 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 36.

The square root of 4545172305 is about 67417.8930625987. The cubic root of 4545172305 is about 1656.4695259416.

Adding to 4545172305 its reverse (5032715454), we get a palindrome (9577887759).

The spelling of 4545172305 in words is "four billion, five hundred forty-five million, one hundred seventy-two thousand, three hundred five".