2156583 has 24 divisors (see below), whose sum is σ = 3411184. Its totient is φ = 1203840.

The previous prime is 2156537. The next prime is 2156597. The reversal of 2156583 is 3856512.

It is not a de Polignac number, because 2156583 - 2⁹ = 2156071 is a prime.

It is a Duffinian number.

It is a zygodrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 2156583.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2156083) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4491 + ... + 4947.

2^2156583 is an apocalyptic number.

2156583 is a deficient number, since it is larger than the sum of its proper divisors (1254601).

2156583 is a wasteful number, since it uses less digits than its factorization.

2156583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495 (or 484 counting only the distinct ones).

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

The square root of 2156583 is about 1468.5308985513. The cubic root of 2156583 is about 129.1978815067.

The spelling of 2156583 in words is "two million, one hundred fifty-six thousand, five hundred eighty-three".