2237121 has 6 divisors (see below), whose sum is σ = 3231410. Its totient is φ = 1491408.

The previous prime is 2237119. The next prime is 2237129. The reversal of 2237121 is 1217322.

It can be written as a sum of positive squares in only one way, i.e., 1718721 + 518400 = 1311^2 + 720^2 .

It is not a de Polignac number, because 2237121 - 2¹ = 2237119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2237094 and 2237103.

It is not an unprimeable number, because it can be changed into a prime (2237129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 124276 + ... + 124293.

2^2237121 is an apocalyptic number.

It is an amenable number.

2237121 is a deficient number, since it is larger than the sum of its proper divisors (994289).

2237121 is a wasteful number, since it uses less digits than its factorization.

2237121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248575 (or 248572 counting only the distinct ones).

The product of its digits is 168, while the sum is 18.

The square root of 2237121 is about 1495.7008390718. The cubic root of 2237121 is about 130.7865724229.

The spelling of 2237121 in words is "two million, two hundred thirty-seven thousand, one hundred twenty-one".