102030198 has 8 divisors (see below), whose sum is σ = 204060408. Its totient is φ = 34010064.

The previous prime is 102030193. The next prime is 102030217. The reversal of 102030198 is 891030201.

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

102030198 is an admirable number.

It is a super-2 number, since 2×102030198² = 20820322607838408, which contains 22 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102030193) 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, 8502511 + ... + 8502522.

It is an arithmetic number, because the mean of its divisors is an integer number (25507551).

Almost surely, 2^102030198 is an apocalyptic number.

102030198 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102030198 is a wasteful number, since it uses less digits than its factorization.

102030198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17005038.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 102030198 is about 10100.9998514999. Note that the first 3 decimals coincide. The cubic root of 102030198 is about 467.2789777575.

Adding to 102030198 its reverse (891030201), we get a palindrome (993060399).

The spelling of 102030198 in words is "one hundred two million, thirty thousand, one hundred ninety-eight".