2271138 has 8 divisors (see below), whose sum is σ = 4542288. Its totient is φ = 757044.

The previous prime is 2271133. The next prime is 2271151. The reversal of 2271138 is 8311722.

It is a sphenic number, since it is the product of 3 distinct primes.

2271138 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2271133) 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, 189256 + ... + 189267.

It is an arithmetic number, because the mean of its divisors is an integer number (567786).

2^2271138 is an apocalyptic number.

2271138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2271138 is a wasteful number, since it uses less digits than its factorization.

2271138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378528.

The product of its digits is 672, while the sum is 24.

The square root of 2271138 is about 1507.0295285760. The cubic root of 2271138 is about 131.4461412059.

The spelling of 2271138 in words is "two million, two hundred seventy-one thousand, one hundred thirty-eight".