13012533 has 12 divisors (see below), whose sum is σ = 18859308. Its totient is φ = 8645760.

The previous prime is 13012523. The next prime is 13012543. The reversal of 13012533 is 33521031.

13012533 is a `hidden beast` number, since 130 + 1 + 2 + 533 = 666.

13012533 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13012523) and next prime (13012543).

It can be written as a sum of positive squares in 2 ways, for example, as 2241009 + 10771524 = 1497^2 + 3282^2 .

It is not a de Polignac number, because 13012533 - 2¹⁴ = 12996149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13012523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 573 + ... + 5133.

It is an arithmetic number, because the mean of its divisors is an integer number (1571609).

Almost surely, 2^13012533 is an apocalyptic number.

It is an amenable number.

13012533 is a deficient number, since it is larger than the sum of its proper divisors (5846775).

13012533 is a wasteful number, since it uses less digits than its factorization.

13012533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4884 (or 4881 counting only the distinct ones).

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

The square root of 13012533 is about 3607.2888711607. The cubic root of 13012533 is about 235.2090067528.

Adding to 13012533 its reverse (33521031), we get a palindrome (46533564).

It can be divided in two parts, 13012 and 533, that multiplied together give a palindrome (6935396).

The spelling of 13012533 in words is "thirteen million, twelve thousand, five hundred thirty-three".