204501151 has 4 divisors (see below), whose sum is σ = 204590632. Its totient is φ = 204411672.

The previous prime is 204501149. The next prime is 204501179. The reversal of 204501151 is 151105402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 204501151 - 2¹ = 204501149 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 (204501131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41220 + ... + 45913.

It is an arithmetic number, because the mean of its divisors is an integer number (51147658).

Almost surely, 2^204501151 is an apocalyptic number.

204501151 is a deficient number, since it is larger than the sum of its proper divisors (89481).

204501151 is an equidigital number, since it uses as much as digits as its factorization.

204501151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89480.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 204501151 is about 14300.3898897897. The cubic root of 204501151 is about 589.1581895002.

Adding to 204501151 its reverse (151105402), we get a palindrome (355606553).

The spelling of 204501151 in words is "two hundred four million, five hundred one thousand, one hundred fifty-one".