104020451 has 2 divisors, whose sum is σ = 104020452. Its totient is φ = 104020450.

The previous prime is 104020439. The next prime is 104020453. The reversal of 104020451 is 154020401.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104020451 is a prime.

Together with 104020453, it forms a pair of twin primes.

It is a Chen prime.

It is a zygodrome in base 2.

It is not a weakly prime, because it can be changed into another prime (104020453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52010225 + 52010226.

It is an arithmetic number, because the mean of its divisors is an integer number (52010226).

Almost surely, 2^104020451 is an apocalyptic number.

104020451 is a deficient number, since it is larger than the sum of its proper divisors (1).

104020451 is an equidigital number, since it uses as much as digits as its factorization.

104020451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 104020451 is about 10199.0416706669. The cubic root of 104020451 is about 470.2977606172.

Adding to 104020451 its reverse (154020401), we get a palindrome (258040852).

The spelling of 104020451 in words is "one hundred four million, twenty thousand, four hundred fifty-one".