20075105 has 8 divisors (see below), whose sum is σ = 24921000. Its totient is φ = 15506176.

The previous prime is 20075089. The next prime is 20075141. The reversal of 20075105 is 50157002.

It can be written as a sum of positive squares in 4 ways, for example, as 5997601 + 14077504 = 2449^2 + 3752^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 20075105 - 2⁴ = 20075089 is a prime.

It is a super-2 number, since 2×20075105² = 806019681522050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69080 + ... + 69369.

It is an arithmetic number, because the mean of its divisors is an integer number (3115125).

Almost surely, 2^20075105 is an apocalyptic number.

It is an amenable number.

20075105 is a deficient number, since it is larger than the sum of its proper divisors (4845895).

20075105 is a wasteful number, since it uses less digits than its factorization.

20075105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138483.

The product of its (nonzero) digits is 350, while the sum is 20.

The square root of 20075105 is about 4480.5250808360. The cubic root of 20075105 is about 271.7811144536.

The spelling of 20075105 in words is "twenty million, seventy-five thousand, one hundred five".