100420097 has 2 divisors, whose sum is σ = 100420098. Its totient is φ = 100420096.

The previous prime is 100420081. The next prime is 100420141. The reversal of 100420097 is 790024001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69239041 + 31181056 = 8321^2 + 5584^2 .

It is a cyclic number.

It is not a de Polignac number, because 100420097 - 2⁴ = 100420081 is a prime.

It is not a weakly prime, because it can be changed into another prime (100420027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50210048 + 50210049.

It is an arithmetic number, because the mean of its divisors is an integer number (50210049).

Almost surely, 2^100420097 is an apocalyptic number.

It is an amenable number.

100420097 is a deficient number, since it is larger than the sum of its proper divisors (1).

100420097 is an equidigital number, since it uses as much as digits as its factorization.

100420097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 100420097 is about 10020.9828360296. The cubic root of 100420097 is about 464.8079478226.

Adding to 100420097 its reverse (790024001), we get a palindrome (890444098).

The spelling of 100420097 in words is "one hundred million, four hundred twenty thousand, ninety-seven".