102002198 has 8 divisors (see below), whose sum is σ = 153369720. Its totient is φ = 50878960.

The previous prime is 102002191. The next prime is 102002249. The reversal of 102002198 is 891200201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102002191) 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, 60023 + ... + 61698.

It is an arithmetic number, because the mean of its divisors is an integer number (19171215).

Almost surely, 2^102002198 is an apocalyptic number.

102002198 is a deficient number, since it is larger than the sum of its proper divisors (51367522).

102002198 is a wasteful number, since it uses less digits than its factorization.

102002198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122142.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 102002198 is about 10099.6137549908. The cubic root of 102002198 is about 467.2362289482.

Adding to 102002198 its reverse (891200201), we get a palindrome (993202399).

The spelling of 102002198 in words is "one hundred two million, two thousand, one hundred ninety-eight".