2237161 has 4 divisors (see below), whose sum is σ = 2289232. Its totient is φ = 2185092.

The previous prime is 2237159. The next prime is 2237167. The reversal of 2237161 is 1617322.

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 2237161 - 2¹ = 2237159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2237167) 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, 25971 + ... + 26056.

It is an arithmetic number, because the mean of its divisors is an integer number (572308).

2^2237161 is an apocalyptic number.

It is an amenable number.

2237161 is a deficient number, since it is larger than the sum of its proper divisors (52071).

2237161 is an equidigital number, since it uses as much as digits as its factorization.

2237161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52070.

The product of its digits is 504, while the sum is 22.

The square root of 2237161 is about 1495.7142106699. The cubic root of 2237161 is about 130.7873519116.

It can be divided in two parts, 22371 and 61, that multiplied together give a palindrome (1364631).

The spelling of 2237161 in words is "two million, two hundred thirty-seven thousand, one hundred sixty-one".