2155683 has 16 divisors (see below), whose sum is σ = 3081600. Its totient is φ = 1336320.

The previous prime is 2155667. The next prime is 2155691. The reversal of 2155683 is 3865512.

It is not a de Polignac number, because 2155683 - 2⁴ = 2155667 is a prime.

2155683 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2155683.

It is not an unprimeable number, because it can be changed into a prime (2155603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3043 + ... + 3683.

It is an arithmetic number, because the mean of its divisors is an integer number (192600).

2^2155683 is an apocalyptic number.

2155683 is a deficient number, since it is larger than the sum of its proper divisors (925917).

2155683 is a wasteful number, since it uses less digits than its factorization.

2155683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722.

The product of its digits is 7200, while the sum is 30.

The square root of 2155683 is about 1468.2244378841. The cubic root of 2155683 is about 129.1799064241.

The spelling of 2155683 in words is "two million, one hundred fifty-five thousand, six hundred eighty-three".