105202135 has 4 divisors (see below), whose sum is σ = 126242568. Its totient is φ = 84161704.

The previous prime is 105202099. The next prime is 105202147. The reversal of 105202135 is 531202501.

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

It is a cyclic number.

It is not a de Polignac number, because 105202135 - 2⁷ = 105202007 is a prime.

It is a super-2 number, since 2×105202135² = 22134978417116450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 10520209 + ... + 10520218.

It is an arithmetic number, because the mean of its divisors is an integer number (31560642).

Almost surely, 2^105202135 is an apocalyptic number.

105202135 is a deficient number, since it is larger than the sum of its proper divisors (21040433).

105202135 is an equidigital number, since it uses as much as digits as its factorization.

105202135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21040432.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 105202135 is about 10256.8092016962. The cubic root of 105202135 is about 472.0719376493.

Adding to 105202135 its reverse (531202501), we get a palindrome (636404636).

The spelling of 105202135 in words is "one hundred five million, two hundred two thousand, one hundred thirty-five".