2291237 has 16 divisors (see below), whose sum is σ = 2634240. Its totient is φ = 1976832.

The previous prime is 2291231. The next prime is 2291239. The reversal of 2291237 is 7321922.

2291237 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2291237 - 2¹⁰ = 2290213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2291231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23573 + ... + 23669.

It is an arithmetic number, because the mean of its divisors is an integer number (164640).

2^2291237 is an apocalyptic number.

It is an amenable number.

2291237 is a deficient number, since it is larger than the sum of its proper divisors (343003).

2291237 is a wasteful number, since it uses less digits than its factorization.

2291237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212.

The product of its digits is 1512, while the sum is 26.

The square root of 2291237 is about 1513.6832561669. The cubic root of 2291237 is about 131.8327580465.

The spelling of 2291237 in words is "two million, two hundred ninety-one thousand, two hundred thirty-seven".