2291132 has 24 divisors (see below), whose sum is σ = 4158336. Its totient is φ = 1104048.

The previous prime is 2291131. The next prime is 2291143. The reversal of 2291132 is 2311922.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2291131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22193 + ... + 22295.

It is an arithmetic number, because the mean of its divisors is an integer number (173264).

2^2291132 is an apocalyptic number.

It is an amenable number.

2291132 is a deficient number, since it is larger than the sum of its proper divisors (1867204).

2291132 is a wasteful number, since it uses less digits than its factorization.

2291132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257 (or 255 counting only the distinct ones).

The product of its digits is 216, while the sum is 20.

The square root of 2291132 is about 1513.6485721593. The cubic root of 2291132 is about 131.8307441924.

The spelling of 2291132 in words is "two million, two hundred ninety-one thousand, one hundred thirty-two".