2136889 has 2 divisors, whose sum is σ = 2136890. Its totient is φ = 2136888.

The previous prime is 2136877. The next prime is 2136913. The reversal of 2136889 is 9886312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1776889 + 360000 = 1333^2 + 600^2 .

It is a cyclic number.

It is not a de Polignac number, because 2136889 - 2¹¹ = 2134841 is a prime.

It is a d-powerful number, because it can be written as 2⁷ + 1 + 3⁵ + 6² + 8⁵ + 8⁷ + 9⁴ .

It is not a weakly prime, because it can be changed into another prime (2136829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1068444 + 1068445.

It is an arithmetic number, because the mean of its divisors is an integer number (1068445).

2^2136889 is an apocalyptic number.

It is an amenable number.

2136889 is a deficient number, since it is larger than the sum of its proper divisors (1).

2136889 is an equidigital number, since it uses as much as digits as its factorization.

2136889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 37.

The square root of 2136889 is about 1461.8101791956. The cubic root of 2136889 is about 128.8033982167.

It can be divided in two parts, 2136 and 889, that added together give a square (3025 = 55²).

The spelling of 2136889 in words is "two million, one hundred thirty-six thousand, eight hundred eighty-nine".