12135403 has 8 divisors (see below), whose sum is σ = 13916672. Its totient is φ = 10366056.

The previous prime is 12135367. The next prime is 12135413. The reversal of 12135403 is 30453121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12135403 - 2⁹ = 12134891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12135413) 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, 675 + ... + 4972.

It is an arithmetic number, because the mean of its divisors is an integer number (1739584).

Almost surely, 2^12135403 is an apocalyptic number.

12135403 is a deficient number, since it is larger than the sum of its proper divisors (1781269).

12135403 is an equidigital number, since it uses as much as digits as its factorization.

12135403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5961.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 12135403 is about 3483.5905327693. The cubic root of 12135403 is about 229.8007284726.

Adding to 12135403 its reverse (30453121), we get a palindrome (42588524).

The spelling of 12135403 in words is "twelve million, one hundred thirty-five thousand, four hundred three".