2135397605 has 16 divisors (see below), whose sum is σ = 2803374144. Its totient is φ = 1548602880.

The previous prime is 2135397599. The next prime is 2135397619. The reversal of 2135397605 is 5067935312.

It is a happy number.

It is not a de Polignac number, because 2135397605 - 2⁶ = 2135397541 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35579 + ... + 74408.

It is an arithmetic number, because the mean of its divisors is an integer number (175210884).

Almost surely, 2^2135397605 is an apocalyptic number.

It is an amenable number.

2135397605 is a deficient number, since it is larger than the sum of its proper divisors (667976539).

2135397605 is a wasteful number, since it uses less digits than its factorization.

2135397605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110356.

The product of its (nonzero) digits is 170100, while the sum is 41.

The square root of 2135397605 is about 46210.3625283334. The cubic root of 2135397605 is about 1287.7342607010.

The spelling of 2135397605 in words is "two billion, one hundred thirty-five million, three hundred ninety-seven thousand, six hundred five".