2263191 has 16 divisors (see below), whose sum is σ = 3523584. Its totient is φ = 1265184.

The previous prime is 2263171. The next prime is 2263201. The reversal of 2263191 is 1913622.

It is not a de Polignac number, because 2263191 - 2⁹ = 2262679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2263141) 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, 160 + ... + 2133.

It is an arithmetic number, because the mean of its divisors is an integer number (220224).

2^2263191 is an apocalyptic number.

2263191 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2263191 is a deficient number, since it is larger than the sum of its proper divisors (1260393).

2263191 is a wasteful number, since it uses less digits than its factorization.

2263191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2350.

The product of its digits is 648, while the sum is 24.

The square root of 2263191 is about 1504.3905742858. The cubic root of 2263191 is about 131.2926464590.

It can be divided in two parts, 22631 and 91, that added together give a palindrome (22722).

The spelling of 2263191 in words is "two million, two hundred sixty-three thousand, one hundred ninety-one".