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12533 = 83151
BaseRepresentation
bin11000011110101
3122012012
43003311
5400113
6134005
751353
oct30365
918165
1012533
119464
127305
135921
1447d3
153aa8
hex30f5

12533 has 4 divisors (see below), whose sum is σ = 12768. Its totient is φ = 12300.

The previous prime is 12527. The next prime is 12539. The reversal of 12533 is 33521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (12527) and next prime (12539).

It is a cyclic number.

It is not a de Polignac number, because 12533 - 24 = 12517 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 (12539) 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, 8 + ... + 158.

It is an arithmetic number, because the mean of its divisors is an integer number (3192).

212533 is an apocalyptic number.

It is an amenable number.

12533 is a deficient number, since it is larger than the sum of its proper divisors (235).

12533 is an equidigital number, since it uses as much as digits as its factorization.

12533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234.

The product of its digits is 90, while the sum is 14.

The square root of 12533 is about 111.9508820867. The cubic root of 12533 is about 23.2283492130.

It can be divided in two parts, 12 and 533, that added together give a palindrome (545).

The spelling of 12533 in words is "twelve thousand, five hundred thirty-three".

Divisors: 1 83 151 12533