2849531161 has 3 divisors (see below), whose sum is σ = 2849584543. Its totient is φ = 2849477780.

The previous prime is 2849531147. The next prime is 2849531171. The reversal of 2849531161 is 1611359482.

The square root of 2849531161 is 53381.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1611359482 = 2 ⋅805679741.

It can be written as a sum of positive squares in only one way, i.e., 383415561 + 2466115600 = 19581^2 + 49660^2 .

It is not a de Polignac number, because 2849531161 - 2¹⁷ = 2849400089 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2849531141) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 26691 + ... + 80071.

Almost surely, 2^2849531161 is an apocalyptic number.

2849531161 is the 53381-st square number.

2849531161 is the 26691-st centered octagonal number.

It is an amenable number.

2849531161 is a deficient number, since it is larger than the sum of its proper divisors (53382).

2849531161 is an frugal number, since it uses more digits than its factorization.

2849531161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106762 (or 53381 counting only the distinct ones).

The product of its digits is 51840, while the sum is 40.

The cubic root of 2849531161 is about 1417.7221897360.

The spelling of 2849531161 in words is "two billion, eight hundred forty-nine million, five hundred thirty-one thousand, one hundred sixty-one".