2311247 has 6 divisors (see below), whose sum is σ = 2419368. Its totient is φ = 2203784.

The previous prime is 2311237. The next prime is 2311249. The reversal of 2311247 is 7421132.

It is not a de Polignac number, because 2311247 - 2⁸ = 2310991 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311249) 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, 7133 + ... + 7449.

It is an arithmetic number, because the mean of its divisors is an integer number (403228).

2^2311247 is an apocalyptic number.

2311247 is a deficient number, since it is larger than the sum of its proper divisors (108121).

2311247 is an frugal number, since it uses more digits than its factorization.

2311247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657 (or 340 counting only the distinct ones).

The product of its digits is 336, while the sum is 20.

The square root of 2311247 is about 1520.2785928901. The cubic root of 2311247 is about 132.2154234147.

Adding to 2311247 its reverse (7421132), we get a palindrome (9732379).

The spelling of 2311247 in words is "two million, three hundred eleven thousand, two hundred forty-seven".