2119742136 has 80 divisors (see below), whose sum is σ = 6097775640. Its totient is φ = 687476160.

The previous prime is 2119742113. The next prime is 2119742137. The reversal of 2119742136 is 6312479112.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2119742136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2119742137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 20230 + ... + 68181.

Almost surely, 2^2119742136 is an apocalyptic number.

It is an amenable number.

2119742136 is an abundant number, since it is smaller than the sum of its proper divisors (3978033504).

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

2119742136 is a wasteful number, since it uses less digits than its factorization.

2119742136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88466 (or 88453 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 2119742136 is about 46040.6574236294. The cubic root of 2119742136 is about 1284.5795706544.

The spelling of 2119742136 in words is "two billion, one hundred nineteen million, seven hundred forty-two thousand, one hundred thirty-six".