20113582 has 8 divisors (see below), whose sum is σ = 30195000. Its totient is φ = 10048584.

The previous prime is 20113579. The next prime is 20113589. The reversal of 20113582 is 28531102.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20113589) 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, 357 + ... + 6352.

It is an arithmetic number, because the mean of its divisors is an integer number (3774375).

Almost surely, 2^20113582 is an apocalyptic number.

20113582 is a deficient number, since it is larger than the sum of its proper divisors (10081418).

20113582 is a wasteful number, since it uses less digits than its factorization.

20113582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8210.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 20113582 is about 4484.8168301504. The cubic root of 20113582 is about 271.9546402879.

Adding to 20113582 its reverse (28531102), we get a palindrome (48644684).

The spelling of 20113582 in words is "twenty million, one hundred thirteen thousand, five hundred eighty-two".