8551145 has 4 divisors (see below), whose sum is σ = 10261380. Its totient is φ = 6840912.

The previous prime is 8551139. The next prime is 8551157. The reversal of 8551145 is 5411558.

8551145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5411558 = 2 ⋅2705779.

It can be written as a sum of positive squares in 2 ways, for example, as 3182656 + 5368489 = 1784^2 + 2317^2 .

It is a cyclic number.

It is not a de Polignac number, because 8551145 - 2⁸ = 8550889 is a prime.

It is a super-2 number, since 2×8551145² = 146244161622050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 855110 + ... + 855119.

It is an arithmetic number, because the mean of its divisors is an integer number (2565345).

Almost surely, 2^8551145 is an apocalyptic number.

It is an amenable number.

8551145 is a deficient number, since it is larger than the sum of its proper divisors (1710235).

8551145 is a wasteful number, since it uses less digits than its factorization.

8551145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1710234.

The product of its digits is 4000, while the sum is 29.

The square root of 8551145 is about 2924.2340877570. The cubic root of 8551145 is about 204.4912628305.

The spelling of 8551145 in words is "eight million, five hundred fifty-one thousand, one hundred forty-five".