104135285 has 16 divisors (see below), whose sum is σ = 135544752. Its totient is φ = 76492800.

The previous prime is 104135281. The next prime is 104135287. The reversal of 104135285 is 582531401.

It can be written as a sum of positive squares in 8 ways, for example, as 18054001 + 86081284 = 4249^2 + 9278^2 .

It is not a de Polignac number, because 104135285 - 2² = 104135281 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104135281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11456 + ... + 18425.

It is an arithmetic number, because the mean of its divisors is an integer number (8471547).

Almost surely, 2^104135285 is an apocalyptic number.

It is an amenable number.

104135285 is a deficient number, since it is larger than the sum of its proper divisors (31409467).

104135285 is a wasteful number, since it uses less digits than its factorization.

104135285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29944.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 104135285 is about 10204.6697643775. The cubic root of 104135285 is about 470.4707596484.

Adding to 104135285 its reverse (582531401), we get a palindrome (686666686).

The spelling of 104135285 in words is "one hundred four million, one hundred thirty-five thousand, two hundred eighty-five".