204552145 has 16 divisors (see below), whose sum is σ = 283425408. Its totient is φ = 138816000.

The previous prime is 204552137. The next prime is 204552151. The reversal of 204552145 is 541255402.

204552145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 204552145 - 2³ = 204552137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26731 + ... + 33520.

It is an arithmetic number, because the mean of its divisors is an integer number (17714088).

Almost surely, 2^204552145 is an apocalyptic number.

It is an amenable number.

204552145 is a deficient number, since it is larger than the sum of its proper divisors (78873263).

204552145 is an equidigital number, since it uses as much as digits as its factorization.

204552145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60360.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 204552145 is about 14302.1727370354. The cubic root of 204552145 is about 589.2071558682.

The spelling of 204552145 in words is "two hundred four million, five hundred fifty-two thousand, one hundred forty-five".