1243107 has 20 divisors (see below), whose sum is σ = 1887600. Its totient is φ = 815184.

The previous prime is 1243097. The next prime is 1243111. The reversal of 1243107 is 7013421.

It is not a de Polignac number, because 1243107 - 2⁷ = 1242979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1243107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243147) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8269 + ... + 8417.

It is an arithmetic number, because the mean of its divisors is an integer number (94380).

2^1243107 is an apocalyptic number.

1243107 is a deficient number, since it is larger than the sum of its proper divisors (644493).

1243107 is a wasteful number, since it uses less digits than its factorization.

1243107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264 (or 255 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 1243107 is about 1114.9470839461. The cubic root of 1243107 is about 107.5233625084.

Adding to 1243107 its reverse (7013421), we get a palindrome (8256528).

The spelling of 1243107 in words is "one million, two hundred forty-three thousand, one hundred seven".