100881941 has 2 divisors, whose sum is σ = 100881942. Its totient is φ = 100881940.

The previous prime is 100881929. The next prime is 100881971. The reversal of 100881941 is 149188001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52635025 + 48246916 = 7255^2 + 6946^2 .

It is an emirp because it is prime and its reverse (149188001) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100881941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100881898 and 100881907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100881971) 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, 50440970 + 50440971.

It is an arithmetic number, because the mean of its divisors is an integer number (50440971).

Almost surely, 2^100881941 is an apocalyptic number.

It is an amenable number.

100881941 is a deficient number, since it is larger than the sum of its proper divisors (1).

100881941 is an equidigital number, since it uses as much as digits as its factorization.

100881941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 32.

The square root of 100881941 is about 10044.0002489048. Note that the first 3 decimals coincide. The cubic root of 100881941 is about 465.5194272668.

The spelling of 100881941 in words is "one hundred million, eight hundred eighty-one thousand, nine hundred forty-one".