102197195 has 4 divisors (see below), whose sum is σ = 122636640. Its totient is φ = 81757752.

The previous prime is 102197191. The next prime is 102197203. The reversal of 102197195 is 591791201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 591791201 = 7237 ⋅81773.

It is a cyclic number.

It is not a de Polignac number, because 102197195 - 2² = 102197191 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102197191) 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, 10219715 + ... + 10219724.

It is an arithmetic number, because the mean of its divisors is an integer number (30659160).

Almost surely, 2^102197195 is an apocalyptic number.

102197195 is a deficient number, since it is larger than the sum of its proper divisors (20439445).

102197195 is an equidigital number, since it uses as much as digits as its factorization.

102197195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20439444.

The product of its (nonzero) digits is 5670, while the sum is 35.

The square root of 102197195 is about 10109.2628316807. The cubic root of 102197195 is about 467.5337770023.

The spelling of 102197195 in words is "one hundred two million, one hundred ninety-seven thousand, one hundred ninety-five".