100299961 has 2 divisors, whose sum is σ = 100299962. Its totient is φ = 100299960.

The previous prime is 100299959. The next prime is 100300001. The reversal of 100299961 is 169992001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83612736 + 16687225 = 9144^2 + 4085^2 .

It is a cyclic number.

It is not a de Polignac number, because 100299961 - 2¹ = 100299959 is a prime.

Together with 100299959, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100299961.

It is not a weakly prime, because it can be changed into another prime (100299361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50149980 + 50149981.

It is an arithmetic number, because the mean of its divisors is an integer number (50149981).

Almost surely, 2^100299961 is an apocalyptic number.

It is an amenable number.

100299961 is a deficient number, since it is larger than the sum of its proper divisors (1).

100299961 is an equidigital number, since it uses as much as digits as its factorization.

100299961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 37.

The square root of 100299961 is about 10014.9868197617. The cubic root of 100299961 is about 464.6225186375.

The spelling of 100299961 in words is "one hundred million, two hundred ninety-nine thousand, nine hundred sixty-one".