2851161 has 16 divisors (see below), whose sum is σ = 3949824. Its totient is φ = 1828224.

The previous prime is 2851153. The next prime is 2851169. The reversal of 2851161 is 1611582.

It is an interprime number because it is at equal distance from previous prime (2851153) and next prime (2851169).

It is not a de Polignac number, because 2851161 - 2³ = 2851153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2851169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10155 + ... + 10431.

It is an arithmetic number, because the mean of its divisors is an integer number (246864).

2^2851161 is an apocalyptic number.

It is an amenable number.

2851161 is a deficient number, since it is larger than the sum of its proper divisors (1098663).

2851161 is a wasteful number, since it uses less digits than its factorization.

2851161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400.

The product of its digits is 480, while the sum is 24.

The square root of 2851161 is about 1688.5381251248. The cubic root of 2851161 is about 141.7992435189.

The spelling of 2851161 in words is "two million, eight hundred fifty-one thousand, one hundred sixty-one".