2135371720 has 32 divisors (see below), whose sum is σ = 4834077120. Its totient is φ = 848905920.

The previous prime is 2135371709. The next prime is 2135371741. The reversal of 2135371720 is 271735312.

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 7 ways as a sum of consecutive naturals, for example, 157236 + ... + 170275.

It is an arithmetic number, because the mean of its divisors is an integer number (151064910).

Almost surely, 2^2135371720 is an apocalyptic number.

2135371720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2135371720 is an abundant number, since it is smaller than the sum of its proper divisors (2698705400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2135371720 is a wasteful number, since it uses less digits than its factorization.

2135371720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327685 (or 327681 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 2135371720 is about 46210.0824496127. The cubic root of 2135371720 is about 1287.7290574334.

The spelling of 2135371720 in words is "two billion, one hundred thirty-five million, three hundred seventy-one thousand, seven hundred twenty".