20037189 has 4 divisors (see below), whose sum is σ = 26716256. Its totient is φ = 13358124.

The previous prime is 20037179. The next prime is 20037197. The reversal of 20037189 is 98173002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20037189 - 2⁹ = 20036677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20037109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3339529 + ... + 3339534.

It is an arithmetic number, because the mean of its divisors is an integer number (6679064).

Almost surely, 2^20037189 is an apocalyptic number.

It is an amenable number.

20037189 is a deficient number, since it is larger than the sum of its proper divisors (6679067).

20037189 is an equidigital number, since it uses as much as digits as its factorization.

20037189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6679066.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 20037189 is about 4476.2918805636. The cubic root of 20037189 is about 271.6099016145.

The spelling of 20037189 in words is "twenty million, thirty-seven thousand, one hundred eighty-nine".