104919851 has 2 divisors, whose sum is σ = 104919852. Its totient is φ = 104919850.

The previous prime is 104919847. The next prime is 104919889. The reversal of 104919851 is 158919401.

It is an a-pointer prime, because the next prime (104919889) can be obtained adding 104919851 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 104919851 - 2² = 104919847 is a prime.

It is a super-2 number, since 2×104919851² = 22016350267724402, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (104919811) 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 as a sum of consecutive naturals, namely, 52459925 + 52459926.

It is an arithmetic number, because the mean of its divisors is an integer number (52459926).

Almost surely, 2^104919851 is an apocalyptic number.

104919851 is a deficient number, since it is larger than the sum of its proper divisors (1).

104919851 is an equidigital number, since it uses as much as digits as its factorization.

104919851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 38.

The square root of 104919851 is about 10243.0391486121. The cubic root of 104919851 is about 471.6493298715.

The spelling of 104919851 in words is "one hundred four million, nine hundred nineteen thousand, eight hundred fifty-one".