204012451 has 2 divisors, whose sum is σ = 204012452. Its totient is φ = 204012450.

The previous prime is 204012449. The next prime is 204012469. The reversal of 204012451 is 154210402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 204012451 - 2¹ = 204012449 is a prime.

Together with 204012449, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (204012421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102006225 + 102006226.

It is an arithmetic number, because the mean of its divisors is an integer number (102006226).

Almost surely, 2^204012451 is an apocalyptic number.

204012451 is a deficient number, since it is larger than the sum of its proper divisors (1).

204012451 is an equidigital number, since it uses as much as digits as its factorization.

204012451 is an odious number, because the sum of its binary digits is odd.

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

The square root of 204012451 is about 14283.2927226183. The cubic root of 204012451 is about 588.6885079341.

Adding to 204012451 its reverse (154210402), we get a palindrome (358222853).

The spelling of 204012451 in words is "two hundred four million, twelve thousand, four hundred fifty-one".