12403071 has 8 divisors (see below), whose sum is σ = 18374960. Its totient is φ = 8268696.

The previous prime is 12403063. The next prime is 12403087. The reversal of 12403071 is 17030421.

It is not a de Polignac number, because 12403071 - 2³ = 12403063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12403031) 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, 229660 + ... + 229713.

It is an arithmetic number, because the mean of its divisors is an integer number (2296870).

Almost surely, 2^12403071 is an apocalyptic number.

12403071 is a deficient number, since it is larger than the sum of its proper divisors (5971889).

12403071 is an equidigital number, since it uses as much as digits as its factorization.

12403071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459382 (or 459376 counting only the distinct ones).

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

The square root of 12403071 is about 3521.7993980350. The cubic root of 12403071 is about 231.4780116791.

Adding to 12403071 its reverse (17030421), we get a palindrome (29433492).

The spelling of 12403071 in words is "twelve million, four hundred three thousand, seventy-one".