205132145 has 8 divisors (see below), whose sum is σ = 251883456. Its totient is φ = 160289136.

The previous prime is 205132129. The next prime is 205132159. The reversal of 205132145 is 541231502.

205132145 = T₄₅₃ + T₄₅₄ + ... + T₁₀₉₇.

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

It is a cyclic number.

It is not a de Polignac number, because 205132145 - 2⁴ = 205132129 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 205132145.

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, 476837 + ... + 477266.

It is an arithmetic number, because the mean of its divisors is an integer number (31485432).

Almost surely, 2^205132145 is an apocalyptic number.

It is an amenable number.

205132145 is a deficient number, since it is larger than the sum of its proper divisors (46751311).

205132145 is an equidigital number, since it uses as much as digits as its factorization.

205132145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954151.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 205132145 is about 14322.4350234169. The cubic root of 205132145 is about 589.7635220067.

Adding to 205132145 its reverse (541231502), we get a palindrome (746363647).

The spelling of 205132145 in words is "two hundred five million, one hundred thirty-two thousand, one hundred forty-five".