20105354 has 8 divisors (see below), whose sum is σ = 30583008. Its totient is φ = 9911020.

The previous prime is 20105353. The next prime is 20105359. The reversal of 20105354 is 45350102.

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

It is not an unprimeable number, because it can be changed into a prime (20105353) 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, 70652 + ... + 70935.

It is an arithmetic number, because the mean of its divisors is an integer number (3822876).

Almost surely, 2^20105354 is an apocalyptic number.

20105354 is a deficient number, since it is larger than the sum of its proper divisors (10477654).

20105354 is a wasteful number, since it uses less digits than its factorization.

20105354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141660.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 20105354 is about 4483.8994190325. The cubic root of 20105354 is about 271.9175517843.

Adding to 20105354 its reverse (45350102), we get a palindrome (65455456).

The spelling of 20105354 in words is "twenty million, one hundred five thousand, three hundred fifty-four".