104205135 has 32 divisors (see below), whose sum is σ = 172039680. Its totient is φ = 53820288.

The previous prime is 104205131. The next prime is 104205137. The reversal of 104205135 is 531502401.

It is not a de Polignac number, because 104205135 - 2² = 104205131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104205131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 198984 + ... + 199506.

It is an arithmetic number, because the mean of its divisors is an integer number (5376240).

Almost surely, 2^104205135 is an apocalyptic number.

104205135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

104205135 is a deficient number, since it is larger than the sum of its proper divisors (67834545).

104205135 is a wasteful number, since it uses less digits than its factorization.

104205135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 104205135 is about 10208.0916433974. The cubic root of 104205135 is about 470.5759274523.

Adding to 104205135 its reverse (531502401), we get a palindrome (635707536).

The spelling of 104205135 in words is "one hundred four million, two hundred five thousand, one hundred thirty-five".