100402219 has 2 divisors, whose sum is σ = 100402220. Its totient is φ = 100402218.

The previous prime is 100402217. The next prime is 100402223. The reversal of 100402219 is 912204001.

It is a weak prime.

It is an emirp because it is prime and its reverse (912204001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100402219 - 2¹ = 100402217 is a prime.

It is a super-2 number, since 2×100402219² = 20161211160247922, which contains 22 as substring.

Together with 100402217, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 100402196 and 100402205.

It is not a weakly prime, because it can be changed into another prime (100402217) 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, 50201109 + 50201110.

It is an arithmetic number, because the mean of its divisors is an integer number (50201110).

Almost surely, 2^100402219 is an apocalyptic number.

100402219 is a deficient number, since it is larger than the sum of its proper divisors (1).

100402219 is an equidigital number, since it uses as much as digits as its factorization.

100402219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 100402219 is about 10020.0907680520. The cubic root of 100402219 is about 464.7803626084.

The spelling of 100402219 in words is "one hundred million, four hundred two thousand, two hundred nineteen".