2431161 has 16 divisors (see below), whose sum is σ = 3635200. Its totient is φ = 1605744.

The previous prime is 2431151. The next prime is 2431181. The reversal of 2431161 is 1611342.

It is a happy number.

It is not a de Polignac number, because 2431161 - 2⁶ = 2431097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2431151) 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, 3075 + ... + 3783.

It is an arithmetic number, because the mean of its divisors is an integer number (227200).

2^2431161 is an apocalyptic number.

It is an amenable number.

2431161 is a deficient number, since it is larger than the sum of its proper divisors (1204039).

2431161 is a wasteful number, since it uses less digits than its factorization.

2431161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845 (or 839 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 2431161 is about 1559.2180732662. The cubic root of 2431161 is about 134.4635501437.

The spelling of 2431161 in words is "two million, four hundred thirty-one thousand, one hundred sixty-one".