2136140 has 36 divisors (see below), whose sum is σ = 4682496. Its totient is φ = 818496.

The previous prime is 2136139. The next prime is 2136143. The reversal of 2136140 is 416312.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2136143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16757 + ... + 16883.

2^2136140 is an apocalyptic number.

2136140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2136140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2341248).

2136140 is an abundant number, since it is smaller than the sum of its proper divisors (2546356).

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

2136140 is a wasteful number, since it uses less digits than its factorization.

2136140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2136140 is about 1461.5539675291. The cubic root of 2136140 is about 128.7883475178.

The spelling of 2136140 in words is "two million, one hundred thirty-six thousand, one hundred forty".