2136789 has 12 divisors (see below), whose sum is σ = 3110796. Its totient is φ = 1413312.

The previous prime is 2136779. The next prime is 2136793. The reversal of 2136789 is 9876312.

It can be written as a sum of positive squares in 2 ways, for example, as 1102500 + 1034289 = 1050^2 + 1017^2 .

It is not a de Polignac number, because 2136789 - 2⁴ = 2136773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2136779) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 367 + ... + 2099.

It is an arithmetic number, because the mean of its divisors is an integer number (259233).

2^2136789 is an apocalyptic number.

It is an amenable number.

2136789 is a deficient number, since it is larger than the sum of its proper divisors (974007).

2136789 is a wasteful number, since it uses less digits than its factorization.

2136789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1876 (or 1873 counting only the distinct ones).

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

The square root of 2136789 is about 1461.7759746281. The cubic root of 2136789 is about 128.8013889811.

The spelling of 2136789 in words is "two million, one hundred thirty-six thousand, seven hundred eighty-nine".