2189137 has 4 divisors (see below), whose sum is σ = 2195380. Its totient is φ = 2182896.

The previous prime is 2189101. The next prime is 2189147. The reversal of 2189137 is 7319812.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 641601 + 1547536 = 801^2 + 1244^2 .

It is a cyclic number.

It is not a de Polignac number, because 2189137 - 2¹⁵ = 2156369 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2189099 and 2189108.

It is not an unprimeable number, because it can be changed into a prime (2189147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2562 + ... + 3307.

It is an arithmetic number, because the mean of its divisors is an integer number (548845).

2^2189137 is an apocalyptic number.

It is an amenable number.

2189137 is a deficient number, since it is larger than the sum of its proper divisors (6243).

2189137 is an equidigital number, since it uses as much as digits as its factorization.

2189137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6242.

The product of its digits is 3024, while the sum is 31.

The square root of 2189137 is about 1479.5732492851. The cubic root of 2189137 is about 129.8447258544.

The spelling of 2189137 in words is "two million, one hundred eighty-nine thousand, one hundred thirty-seven".