198102007 has 4 divisors (see below), whose sum is σ = 198130176. Its totient is φ = 198073840.

The previous prime is 198101977. The next prime is 198102011. The reversal of 198102007 is 700201891.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 198102007 - 2¹¹ = 198099959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198102077) 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, 6282 + ... + 20872.

It is an arithmetic number, because the mean of its divisors is an integer number (49532544).

Almost surely, 2^198102007 is an apocalyptic number.

198102007 is a deficient number, since it is larger than the sum of its proper divisors (28169).

198102007 is a wasteful number, since it uses less digits than its factorization.

198102007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28168.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 198102007 is about 14074.8714736583. The cubic root of 198102007 is about 582.9477429631.

Adding to 198102007 its reverse (700201891), we get a palindrome (898303898).

The spelling of 198102007 in words is "one hundred ninety-eight million, one hundred two thousand, seven".