20137173 has 16 divisors (see below), whose sum is σ = 30750720. Its totient is φ = 11482416.

The previous prime is 20137153. The next prime is 20137177. The reversal of 20137173 is 37173102.

It is not a de Polignac number, because 20137173 - 2¹² = 20133077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20137177) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14608 + ... + 15926.

It is an arithmetic number, because the mean of its divisors is an integer number (1921920).

Almost surely, 2^20137173 is an apocalyptic number.

It is an amenable number.

20137173 is a deficient number, since it is larger than the sum of its proper divisors (10613547).

20137173 is a wasteful number, since it uses less digits than its factorization.

20137173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2056.

The product of its (nonzero) digits is 882, while the sum is 24.

The square root of 20137173 is about 4487.4461556658. The cubic root of 20137173 is about 272.0609229523.

The spelling of 20137173 in words is "twenty million, one hundred thirty-seven thousand, one hundred seventy-three".