12045403 has 4 divisors (see below), whose sum is σ = 12064288. Its totient is φ = 12026520.

The previous prime is 12045347. The next prime is 12045409. The reversal of 12045403 is 30454021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12045403 is a prime.

It is a super-4 number, since 4×12045403⁴ (a number of 29 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12045409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8451 + ... + 9772.

It is an arithmetic number, because the mean of its divisors is an integer number (3016072).

Almost surely, 2^12045403 is an apocalyptic number.

12045403 is a deficient number, since it is larger than the sum of its proper divisors (18885).

12045403 is an equidigital number, since it uses as much as digits as its factorization.

12045403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18884.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 12045403 is about 3470.6487866104. The cubic root of 12045403 is about 229.2312265637.

Adding to 12045403 its reverse (30454021), we get a palindrome (42499424).

The spelling of 12045403 in words is "twelve million, forty-five thousand, four hundred three".