20593149 has 4 divisors (see below), whose sum is σ = 27457536. Its totient is φ = 13728764.

The previous prime is 20593129. The next prime is 20593151. The reversal of 20593149 is 94139502.

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 a cyclic number.

It is not a de Polignac number, because 20593149 - 2¹¹ = 20591101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20593129) 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, 3432189 + ... + 3432194.

It is an arithmetic number, because the mean of its divisors is an integer number (6864384).

Almost surely, 2^20593149 is an apocalyptic number.

It is an amenable number.

20593149 is a deficient number, since it is larger than the sum of its proper divisors (6864387).

20593149 is an equidigital number, since it uses as much as digits as its factorization.

20593149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6864386.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 20593149 is about 4537.9674965782. The cubic root of 20593149 is about 274.0990859423.

The spelling of 20593149 in words is "twenty million, five hundred ninety-three thousand, one hundred forty-nine".