204201451 has 4 divisors (see below), whose sum is σ = 204549912. Its totient is φ = 203852992.

The previous prime is 204201427. The next prime is 204201457. The reversal of 204201451 is 154102402.

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 204201451 - 2²¹ = 202104299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204201457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173350 + ... + 174523.

It is an arithmetic number, because the mean of its divisors is an integer number (51137478).

Almost surely, 2^204201451 is an apocalyptic number.

204201451 is a deficient number, since it is larger than the sum of its proper divisors (348461).

204201451 is an equidigital number, since it uses as much as digits as its factorization.

204201451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348460.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 204201451 is about 14289.9073125056. The cubic root of 204201451 is about 588.8702415927.

Adding to 204201451 its reverse (154102402), we get a palindrome (358303853).

The spelling of 204201451 in words is "two hundred four million, two hundred one thousand, four hundred fifty-one".