12533783 has 4 divisors (see below), whose sum is σ = 12746280. Its totient is φ = 12321288.

The previous prime is 12533779. The next prime is 12533831. The reversal of 12533783 is 38733521.

12533783 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38733521 = 1607 ⋅24103.

It is a cyclic number.

It is not a de Polignac number, because 12533783 - 2² = 12533779 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 (12533723) 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, 106160 + ... + 106277.

It is an arithmetic number, because the mean of its divisors is an integer number (3186570).

Almost surely, 2^12533783 is an apocalyptic number.

12533783 is a deficient number, since it is larger than the sum of its proper divisors (212497).

12533783 is an equidigital number, since it uses as much as digits as its factorization.

12533783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212496.

The product of its digits is 15120, while the sum is 32.

The square root of 12533783 is about 3540.3083199066. The cubic root of 12533783 is about 232.2883293382.

The spelling of 12533783 in words is "twelve million, five hundred thirty-three thousand, seven hundred eighty-three".