8545172 has 12 divisors (see below), whose sum is σ = 15011136. Its totient is φ = 4256280.

The previous prime is 8545153. The next prime is 8545177. The reversal of 8545172 is 2715458.

It is a d-powerful number, because it can be written as 8 + 5⁷ + 4⁴ + 5⁷ + 1 + 7² + 2²³ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8545177) 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, 2858 + ... + 5025.

It is an arithmetic number, because the mean of its divisors is an integer number (1250928).

Almost surely, 2^8545172 is an apocalyptic number.

It is an amenable number.

8545172 is a deficient number, since it is larger than the sum of its proper divisors (6465964).

8545172 is a wasteful number, since it uses less digits than its factorization.

8545172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8158 (or 8156 counting only the distinct ones).

The product of its digits is 11200, while the sum is 32.

The square root of 8545172 is about 2923.2126162837. The cubic root of 8545172 is about 204.4436391570.

The spelling of 8545172 in words is "eight million, five hundred forty-five thousand, one hundred seventy-two".