2961181 has 4 divisors (see below), whose sum is σ = 3089952. Its totient is φ = 2832412.

The previous prime is 2961149. The next prime is 2961187. The reversal of 2961181 is 1811692.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 2961181 - 2⁵ = 2961149 is a prime.

It is a super-2 number, since 2×2961181² = 17537185829522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2961187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64351 + ... + 64396.

It is an arithmetic number, because the mean of its divisors is an integer number (772488).

2^2961181 is an apocalyptic number.

It is an amenable number.

2961181 is a deficient number, since it is larger than the sum of its proper divisors (128771).

2961181 is a wasteful number, since it uses less digits than its factorization.

2961181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128770.

The product of its digits is 864, while the sum is 28.

The square root of 2961181 is about 1720.8082403336. The cubic root of 2961181 is about 143.6001801401.

It can be divided in two parts, 29611 and 81, that added together give a palindrome (29692).

The spelling of 2961181 in words is "two million, nine hundred sixty-one thousand, one hundred eighty-one".