2136870 has 24 divisors (see below), whose sum is σ = 5556096. Its totient is φ = 569808.

The previous prime is 2136863. The next prime is 2136877. The reversal of 2136870 is 786312.

It is an interprime number because it is at equal distance from previous prime (2136863) and next prime (2136877).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2136877) 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, 11782 + ... + 11961.

It is an arithmetic number, because the mean of its divisors is an integer number (231504).

2^2136870 is an apocalyptic number.

2136870 is an abundant number, since it is smaller than the sum of its proper divisors (3419226).

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

2136870 is a wasteful number, since it uses less digits than its factorization.

2136870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23756 (or 23753 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 2136870 is about 1461.8036803894. The cubic root of 2136870 is about 128.8030164668.

The spelling of 2136870 in words is "two million, one hundred thirty-six thousand, eight hundred seventy".