100998913 has 2 divisors, whose sum is σ = 100998914. Its totient is φ = 100998912.

The previous prime is 100998907. The next prime is 100998923. The reversal of 100998913 is 319899001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99760144 + 1238769 = 9988^2 + 1113^2 .

It is an emirp because it is prime and its reverse (319899001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100998913 - 2¹⁷ = 100867841 is a prime.

It is not a weakly prime, because it can be changed into another prime (100998923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50499456 + 50499457.

It is an arithmetic number, because the mean of its divisors is an integer number (50499457).

Almost surely, 2^100998913 is an apocalyptic number.

It is an amenable number.

100998913 is a deficient number, since it is larger than the sum of its proper divisors (1).

100998913 is an equidigital number, since it uses as much as digits as its factorization.

100998913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 40.

The square root of 100998913 is about 10049.8215407041. The cubic root of 100998913 is about 465.6992800914.

The spelling of 100998913 in words is "one hundred million, nine hundred ninety-eight thousand, nine hundred thirteen".