2237091 has 4 divisors (see below), whose sum is σ = 2982792. Its totient is φ = 1491392.

The previous prime is 2237071. The next prime is 2237107. The reversal of 2237091 is 1907322.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2237091 - 2¹¹ = 2235043 is a prime.

It is a super-2 number, since 2×2237091² = 10009152284562, which contains 22 as substring.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2237051) 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, 372846 + ... + 372851.

It is an arithmetic number, because the mean of its divisors is an integer number (745698).

2^2237091 is an apocalyptic number.

2237091 is a deficient number, since it is larger than the sum of its proper divisors (745701).

2237091 is an equidigital number, since it uses as much as digits as its factorization.

2237091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745700.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 2237091 is about 1495.6908102947. The cubic root of 2237091 is about 130.7859878003.

The spelling of 2237091 in words is "two million, two hundred thirty-seven thousand, ninety-one".