2231247 has 8 divisors (see below), whose sum is σ = 3031344. Its totient is φ = 1459328.

The previous prime is 2231219. The next prime is 2231269. The reversal of 2231247 is 7421322.

2231247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2231247 - 2¹⁶ = 2165711 is a prime.

It is a super-3 number, since 3×2231247³ = 33324543071547918669, which contains 333 as substring.

It is a d-powerful number, because it can be written as 2 + 2⁵ + 3³ + 1 + 2²¹ + 4⁷ + 7⁶ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231297) 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 7 ways as a sum of consecutive naturals, for example, 6858 + ... + 7175.

It is an arithmetic number, because the mean of its divisors is an integer number (378918).

2^2231247 is an apocalyptic number.

2231247 is a deficient number, since it is larger than the sum of its proper divisors (800097).

2231247 is a wasteful number, since it uses less digits than its factorization.

2231247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14089.

The product of its digits is 672, while the sum is 21.

The square root of 2231247 is about 1493.7359204357. The cubic root of 2231247 is about 130.6720034900.

Adding to 2231247 its reverse (7421322), we get a palindrome (9652569).

The spelling of 2231247 in words is "two million, two hundred thirty-one thousand, two hundred forty-seven".