135210533 has 4 divisors (see below), whose sum is σ = 138355008. Its totient is φ = 132066060.

The previous prime is 135210461. The next prime is 135210541. The reversal of 135210533 is 335012531.

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, and also an emirpimes, since its reverse is a distinct semiprime: 335012531 = 7 ⋅47858933.

It is a cyclic number.

It is not a de Polignac number, because 135210533 - 2¹⁰ = 135209509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135210499 and 135210508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135210433) 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 3 ways as a sum of consecutive naturals, for example, 1572173 + ... + 1572258.

It is an arithmetic number, because the mean of its divisors is an integer number (34588752).

Almost surely, 2^135210533 is an apocalyptic number.

It is an amenable number.

135210533 is a deficient number, since it is larger than the sum of its proper divisors (3144475).

135210533 is an equidigital number, since it uses as much as digits as its factorization.

135210533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3144474.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 135210533 is about 11628.0064069470. The cubic root of 135210533 is about 513.2593168802.

The spelling of 135210533 in words is "one hundred thirty-five million, two hundred ten thousand, five hundred thirty-three".