12133503 has 16 divisors (see below), whose sum is σ = 18154240. Its totient is φ = 8008632.

The previous prime is 12133487. The next prime is 12133519. The reversal of 12133503 is 30533121.

It is an interprime number because it is at equal distance from previous prime (12133487) and next prime (12133519).

It is not a de Polignac number, because 12133503 - 2⁴ = 12133487 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 (12133523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 600 + ... + 4962.

It is an arithmetic number, because the mean of its divisors is an integer number (1134640).

Almost surely, 2^12133503 is an apocalyptic number.

12133503 is a deficient number, since it is larger than the sum of its proper divisors (6020737).

12133503 is a wasteful number, since it uses less digits than its factorization.

12133503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4475 (or 4469 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 12133503 is about 3483.3178149575. The cubic root of 12133503 is about 229.7887347994.

Adding to 12133503 its reverse (30533121), we get a palindrome (42666624).

The spelling of 12133503 in words is "twelve million, one hundred thirty-three thousand, five hundred three".