102444197 has 2 divisors, whose sum is σ = 102444198. Its totient is φ = 102444196.

The previous prime is 102444191. The next prime is 102444217. The reversal of 102444197 is 791444201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87590881 + 14853316 = 9359^2 + 3854^2 .

It is a cyclic number.

It is not a de Polignac number, because 102444197 - 2¹² = 102440101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102444191) 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, 51222098 + 51222099.

It is an arithmetic number, because the mean of its divisors is an integer number (51222099).

Almost surely, 2^102444197 is an apocalyptic number.

It is an amenable number.

102444197 is a deficient number, since it is larger than the sum of its proper divisors (1).

102444197 is an equidigital number, since it uses as much as digits as its factorization.

102444197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 102444197 is about 10121.4720767288. The cubic root of 102444197 is about 467.9101371889.

Adding to 102444197 its reverse (791444201), we get a palindrome (893888398).

It can be divided in two parts, 10244 and 4197, that added together give a palindrome (14441).

The spelling of 102444197 in words is "one hundred two million, four hundred forty-four thousand, one hundred ninety-seven".