100841749 has 2 divisors, whose sum is σ = 100841750. Its totient is φ = 100841748.

The previous prime is 100841747. The next prime is 100841771. The reversal of 100841749 is 947148001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71487025 + 29354724 = 8455^2 + 5418^2 .

It is a cyclic number.

It is not a de Polignac number, because 100841749 - 2¹ = 100841747 is a prime.

Together with 100841747, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100841747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50420874 + 50420875.

It is an arithmetic number, because the mean of its divisors is an integer number (50420875).

Almost surely, 2^100841749 is an apocalyptic number.

It is an amenable number.

100841749 is a deficient number, since it is larger than the sum of its proper divisors (1).

100841749 is an equidigital number, since it uses as much as digits as its factorization.

100841749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 100841749 is about 10041.9992531368. Note that the first 3 decimals coincide. The cubic root of 100841749 is about 465.4575970987.

The spelling of 100841749 in words is "one hundred million, eight hundred forty-one thousand, seven hundred forty-nine".