204112145 has 8 divisors (see below), whose sum is σ = 250908840. Its totient is φ = 159306880.

The previous prime is 204112127. The next prime is 204112163. The reversal of 204112145 is 541211402.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (204112127) and next prime (204112163).

It can be written as a sum of positive squares in 4 ways, for example, as 5414929 + 198697216 = 2327^2 + 14096^2 .

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

It is not a de Polignac number, because 204112145 - 2¹⁰ = 204111121 is a prime.

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, 497630 + ... + 498039.

It is an arithmetic number, because the mean of its divisors is an integer number (31363605).

Almost surely, 2^204112145 is an apocalyptic number.

It is an amenable number.

204112145 is a deficient number, since it is larger than the sum of its proper divisors (46796695).

204112145 is an equidigital number, since it uses as much as digits as its factorization.

204112145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995715.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 204112145 is about 14286.7821779434. The cubic root of 204112145 is about 588.7843830546.

Adding to 204112145 its reverse (541211402), we get a palindrome (745323547).

The spelling of 204112145 in words is "two hundred four million, one hundred twelve thousand, one hundred forty-five".