2136215740 has 12 divisors (see below), whose sum is σ = 4486053096. Its totient is φ = 854486288.

The previous prime is 2136215729. The next prime is 2136215747. The reversal of 2136215740 is 475126312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2136215747) 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, 53405374 + ... + 53405413.

It is an arithmetic number, because the mean of its divisors is an integer number (373837758).

Almost surely, 2^2136215740 is an apocalyptic number.

2136215740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2136215740 is an abundant number, since it is smaller than the sum of its proper divisors (2349837356).

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

2136215740 is a wasteful number, since it uses less digits than its factorization.

2136215740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106810796 (or 106810794 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 2136215740 is about 46219.2139699498. The cubic root of 2136215740 is about 1287.8986962684.

The spelling of 2136215740 in words is "two billion, one hundred thirty-six million, two hundred fifteen thousand, seven hundred forty".