102197201 has 4 divisors (see below), whose sum is σ = 103134900. Its totient is φ = 101259504.

The previous prime is 102197191. The next prime is 102197203. The reversal of 102197201 is 102791201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102791201 = 607 ⋅169343.

It can be written as a sum of positive squares in 2 ways, for example, as 90630400 + 11566801 = 9520^2 + 3401^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102197201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (102197203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 468686 + ... + 468903.

It is an arithmetic number, because the mean of its divisors is an integer number (25783725).

Almost surely, 2^102197201 is an apocalyptic number.

It is an amenable number.

102197201 is a deficient number, since it is larger than the sum of its proper divisors (937699).

102197201 is an equidigital number, since it uses as much as digits as its factorization.

102197201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937698.

The product of its (nonzero) digits is 252, while the sum is 23.

The square root of 102197201 is about 10109.2631284382. The cubic root of 102197201 is about 467.5337861519.

The spelling of 102197201 in words is "one hundred two million, one hundred ninety-seven thousand, two hundred one".