100442269 has 2 divisors, whose sum is σ = 100442270. Its totient is φ = 100442268.

The previous prime is 100442207. The next prime is 100442297. The reversal of 100442269 is 962244001.

It is an a-pointer prime, because the next prime (100442297) can be obtained adding 100442269 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50951044 + 49491225 = 7138^2 + 7035^2 .

It is an emirp because it is prime and its reverse (962244001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100442269 - 2¹⁵ = 100409501 is a prime.

It is a super-2 number, since 2×100442269² = 20177298803736722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100442299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50221134 + 50221135.

It is an arithmetic number, because the mean of its divisors is an integer number (50221135).

Almost surely, 2^100442269 is an apocalyptic number.

It is an amenable number.

100442269 is a deficient number, since it is larger than the sum of its proper divisors (1).

100442269 is an equidigital number, since it uses as much as digits as its factorization.

100442269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 100442269 is about 10022.0890536854. The cubic root of 100442269 is about 464.8421540016.

The spelling of 100442269 in words is "one hundred million, four hundred forty-two thousand, two hundred sixty-nine".