2231771 has 4 divisors (see below), whose sum is σ = 2249472. Its totient is φ = 2214072.

The previous prime is 2231767. The next prime is 2231773. The reversal of 2231771 is 1771322.

2231771 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2231771 - 2² = 2231767 is a prime.

It is a super-3 number, since 3×2231771³ = 33348027018134781033, which contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2231773) 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 3 ways as a sum of consecutive naturals, for example, 8660 + ... + 8913.

It is an arithmetic number, because the mean of its divisors is an integer number (562368).

2^2231771 is an apocalyptic number.

2231771 is a deficient number, since it is larger than the sum of its proper divisors (17701).

2231771 is a wasteful number, since it uses less digits than its factorization.

2231771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17700.

The product of its digits is 588, while the sum is 23.

The square root of 2231771 is about 1493.9113092818. The cubic root of 2231771 is about 130.6822319662.

The spelling of 2231771 in words is "two million, two hundred thirty-one thousand, seven hundred seventy-one".