135215833 has 4 divisors (see below), whose sum is σ = 137432548. Its totient is φ = 132999120.

The previous prime is 135215771. The next prime is 135215863. The reversal of 135215833 is 338512531.

135215833 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22686169 + 112529664 = 4763^2 + 10608^2 .

It is a cyclic number.

It is not a de Polignac number, because 135215833 - 2¹³ = 135207641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135215795 and 135215804.

It is not an unprimeable number, because it can be changed into a prime (135215863) 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, 1108266 + ... + 1108387.

It is an arithmetic number, because the mean of its divisors is an integer number (34358137).

Almost surely, 2^135215833 is an apocalyptic number.

It is an amenable number.

135215833 is a deficient number, since it is larger than the sum of its proper divisors (2216715).

135215833 is an equidigital number, since it uses as much as digits as its factorization.

135215833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2216714.

The product of its digits is 10800, while the sum is 31.

The square root of 135215833 is about 11628.2343027650. The cubic root of 135215833 is about 513.2660230610.

The spelling of 135215833 in words is "one hundred thirty-five million, two hundred fifteen thousand, eight hundred thirty-three".