2812231 has 8 divisors (see below), whose sum is σ = 2911104. Its totient is φ = 2714880.

The previous prime is 2812223. The next prime is 2812237. The reversal of 2812231 is 1322182.

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

It is a cyclic number.

It is not a de Polignac number, because 2812231 - 2³ = 2812223 is a prime.

It is a super-2 number, since 2×2812231² = 15817286394722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2812199 and 2812208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2812237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4330 + ... + 4936.

It is an arithmetic number, because the mean of its divisors is an integer number (363888).

2^2812231 is an apocalyptic number.

2812231 is a deficient number, since it is larger than the sum of its proper divisors (98873).

2812231 is a wasteful number, since it uses less digits than its factorization.

2812231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761.

The product of its digits is 192, while the sum is 19.

The square root of 2812231 is about 1676.9707809023. The cubic root of 2812231 is about 141.1509039453.

The spelling of 2812231 in words is "two million, eight hundred twelve thousand, two hundred thirty-one".