100442207 has 2 divisors, whose sum is σ = 100442208. Its totient is φ = 100442206.

The previous prime is 100442203. The next prime is 100442269. The reversal of 100442207 is 702244001.

It is a weak prime.

It is an emirp because it is prime and its reverse (702244001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100442207 - 2² = 100442203 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100442203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50221103 + 50221104.

It is an arithmetic number, because the mean of its divisors is an integer number (50221104).

Almost surely, 2^100442207 is an apocalyptic number.

100442207 is a deficient number, since it is larger than the sum of its proper divisors (1).

100442207 is an equidigital number, since it uses as much as digits as its factorization.

100442207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 100442207 is about 10022.0859605174. The cubic root of 100442207 is about 464.8420583572.

Adding to 100442207 its reverse (702244001), we get a palindrome (802686208).

The spelling of 100442207 in words is "one hundred million, four hundred forty-two thousand, two hundred seven".