2231973 has 6 divisors (see below), whose sum is σ = 3223974. Its totient is φ = 1487976.

The previous prime is 2231941. The next prime is 2232017. The reversal of 2231973 is 3791322.

It can be written as a sum of positive squares in only one way, i.e., 1595169 + 636804 = 1263^2 + 798^2 .

It is not a de Polignac number, because 2231973 - 2⁵ = 2231941 is a prime.

It is a super-3 number, since 3×2231973³ = 33357082935412092951, which contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231773) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 123990 + ... + 124007.

It is an arithmetic number, because the mean of its divisors is an integer number (537329).

2^2231973 is an apocalyptic number.

It is an amenable number.

2231973 is a deficient number, since it is larger than the sum of its proper divisors (992001).

2231973 is a wasteful number, since it uses less digits than its factorization.

2231973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248003 (or 248000 counting only the distinct ones).

The product of its digits is 2268, while the sum is 27.

The square root of 2231973 is about 1493.9789155139. The cubic root of 2231973 is about 130.6861745771.

The spelling of 2231973 in words is "two million, two hundred thirty-one thousand, nine hundred seventy-three".