2135172633 has 32 divisors (see below), whose sum is σ = 3302960640. Its totient is φ = 1213263360.

The previous prime is 2135172631. The next prime is 2135172659. The reversal of 2135172633 is 3362715312.

It is not a de Polignac number, because 2135172633 - 2¹ = 2135172631 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2135172594 and 2135172603.

It is not an unprimeable number, because it can be changed into a prime (2135172631) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43266 + ... + 78372.

It is an arithmetic number, because the mean of its divisors is an integer number (103217520).

Almost surely, 2^2135172633 is an apocalyptic number.

It is an amenable number.

2135172633 is a deficient number, since it is larger than the sum of its proper divisors (1167788007).

2135172633 is a wasteful number, since it uses less digits than its factorization.

2135172633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35237.

The product of its digits is 22680, while the sum is 33.

The square root of 2135172633 is about 46207.9282482996. The cubic root of 2135172633 is about 1287.6890365976.

Adding to 2135172633 its reverse (3362715312), we get a palindrome (5497887945).

The spelling of 2135172633 in words is "two billion, one hundred thirty-five million, one hundred seventy-two thousand, six hundred thirty-three".