202057105 has 4 divisors (see below), whose sum is σ = 242468532. Its totient is φ = 161645680.

The previous prime is 202057099. The next prime is 202057117. The reversal of 202057105 is 501750202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 98485776 + 103571329 = 9924^2 + 10177^2 .

It is not a de Polignac number, because 202057105 - 2⁵ = 202057073 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian 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, 20205706 + ... + 20205715.

It is an arithmetic number, because the mean of its divisors is an integer number (60617133).

Almost surely, 2^202057105 is an apocalyptic number.

It is an amenable number.

202057105 is a deficient number, since it is larger than the sum of its proper divisors (40411427).

202057105 is an equidigital number, since it uses as much as digits as its factorization.

202057105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40411426.

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 202057105 is about 14214.6792084802. The cubic root of 202057105 is about 586.8017163196.

The spelling of 202057105 in words is "two hundred two million, fifty-seven thousand, one hundred five".