2135673385 has 8 divisors (see below), whose sum is σ = 2565125640. Its totient is φ = 1706993664.

The previous prime is 2135673377. The next prime is 2135673401. The reversal of 2135673385 is 5833765312.

It can be written as a sum of positive squares in 4 ways, for example, as 100580841 + 2035092544 = 10029^2 + 45112^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2135673385 - 2³ = 2135673377 is a prime.

It is a super-2 number, since 2×2135673385² = 9122201614794716450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187032 + ... + 198121.

It is an arithmetic number, because the mean of its divisors is an integer number (320640705).

Almost surely, 2^2135673385 is an apocalyptic number.

It is an amenable number.

2135673385 is a deficient number, since it is larger than the sum of its proper divisors (429452255).

2135673385 is a wasteful number, since it uses less digits than its factorization.

2135673385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386267.

The product of its digits is 453600, while the sum is 43.

The square root of 2135673385 is about 46213.3463947375. The cubic root of 2135673385 is about 1287.7896939478.

The spelling of 2135673385 in words is "two billion, one hundred thirty-five million, six hundred seventy-three thousand, three hundred eighty-five".