20131727 has 8 divisors (see below), whose sum is σ = 25099392. Its totient is φ = 15687000.

The previous prime is 20131717. The next prime is 20131753. The reversal of 20131727 is 72713102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20131727 - 2¹⁶ = 20066191 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 (20131717) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130649 + ... + 130802.

It is an arithmetic number, because the mean of its divisors is an integer number (3137424).

Almost surely, 2^20131727 is an apocalyptic number.

20131727 is a deficient number, since it is larger than the sum of its proper divisors (4967665).

20131727 is a wasteful number, since it uses less digits than its factorization.

20131727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261469.

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 20131727 is about 4486.8393106952. The cubic root of 20131727 is about 272.0363948921.

Adding to 20131727 its reverse (72713102), we get a palindrome (92844829).

The spelling of 20131727 in words is "twenty million, one hundred thirty-one thousand, seven hundred twenty-seven".