2231307 has 30 divisors (see below), whose sum is σ = 3631452. Its totient is φ = 1364688.

The previous prime is 2231297. The next prime is 2231309. The reversal of 2231307 is 7031322.

It is not a de Polignac number, because 2231307 - 2⁸ = 2231051 is a prime.

It is a super-3 number, since 3×2231307³ = 33327231513955474329, which contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2231307.

It is not an unprimeable number, because it can be changed into a prime (2231309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 13608 + ... + 13770.

2^2231307 is an apocalyptic number.

2231307 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2231307 is a deficient number, since it is larger than the sum of its proper divisors (1400145).

2231307 is a wasteful number, since it uses less digits than its factorization.

2231307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201 (or 179 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 2231307 is about 1493.7560041720. The cubic root of 2231307 is about 130.6731747707.

Adding to 2231307 its reverse (7031322), we get a palindrome (9262629).

It can be divided in two parts, 22 and 31307, that added together give a square (31329 = 177²).

The spelling of 2231307 in words is "two million, two hundred thirty-one thousand, three hundred seven".