20131352 has 16 divisors (see below), whose sum is σ = 37802160. Its totient is φ = 10050784.

The previous prime is 20131339. The next prime is 20131373. The reversal of 20131352 is 25313102.

It is a self number, because there is not a number n which added to its sum of digits gives 20131352.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5678 + ... + 8514.

It is an arithmetic number, because the mean of its divisors is an integer number (2362635).

Almost surely, 2^20131352 is an apocalyptic number.

It is an amenable number.

20131352 is a deficient number, since it is larger than the sum of its proper divisors (17670808).

20131352 is a wasteful number, since it uses less digits than its factorization.

20131352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3730 (or 3726 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 20131352 is about 4486.7975216183. The cubic root of 20131352 is about 272.0347057791.

Adding to 20131352 its reverse (25313102), we get a palindrome (45444454).

The spelling of 20131352 in words is "twenty million, one hundred thirty-one thousand, three hundred fifty-two".