612533133 has 6 divisors (see below), whose sum is σ = 884770094. Its totient is φ = 408355416.

The previous prime is 612533087. The next prime is 612533149. The reversal of 612533133 is 331335216.

It is a happy number.

612533133 is a `hidden beast` number, since 612 + 5 + 33 + 13 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 606045924 + 6487209 = 24618^2 + 2547^2 .

It is not a de Polignac number, because 612533133 - 2²¹ = 610435981 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 612533097 and 612533106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612531133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34029610 + ... + 34029627.

Almost surely, 2^612533133 is an apocalyptic number.

It is an amenable number.

612533133 is a deficient number, since it is larger than the sum of its proper divisors (272236961).

612533133 is a wasteful number, since it uses less digits than its factorization.

612533133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68059243 (or 68059240 counting only the distinct ones).

The product of its digits is 4860, while the sum is 27.

The square root of 612533133 is about 24749.4067201620. The cubic root of 612533133 is about 849.2649391443.

Adding to 612533133 its reverse (331335216), we get a palindrome (943868349).

The spelling of 612533133 in words is "six hundred twelve million, five hundred thirty-three thousand, one hundred thirty-three".