8519161 has 4 divisors (see below), whose sum is σ = 9736192. Its totient is φ = 7302132.

The previous prime is 8519143. The next prime is 8519207. The reversal of 8519161 is 1619158.

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: 1619158 = 2 ⋅809579.

It is a cyclic number.

It is not a de Polignac number, because 8519161 - 2¹³ = 8510969 is a prime.

It is a super-2 number, since 2×8519161² = 145152208287842, which contains 22 as substring.

It is a Duffinian number.

8519161 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8519111) 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, 608505 + ... + 608518.

It is an arithmetic number, because the mean of its divisors is an integer number (2434048).

Almost surely, 2^8519161 is an apocalyptic number.

It is an amenable number.

8519161 is a deficient number, since it is larger than the sum of its proper divisors (1217031).

8519161 is a wasteful number, since it uses less digits than its factorization.

8519161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217030.

The product of its digits is 2160, while the sum is 31.

The square root of 8519161 is about 2918.7601819951. The cubic root of 8519161 is about 204.2359901940.

The spelling of 8519161 in words is "eight million, five hundred nineteen thousand, one hundred sixty-one".