102198530 has 64 divisors (see below), whose sum is σ = 226575360. Its totient is φ = 32405184.

The previous prime is 102198529. The next prime is 102198533. The reversal of 102198530 is 35891201.

It is a junction number, because it is equal to n+sod(n) for n = 102198493 and 102198502.

It is not an unprimeable number, because it can be changed into a prime (102198533) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56297 + ... + 58083.

It is an arithmetic number, because the mean of its divisors is an integer number (3540240).

Almost surely, 2^102198530 is an apocalyptic number.

102198530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102198530 is an abundant number, since it is smaller than the sum of its proper divisors (124376830).

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

102198530 is a wasteful number, since it uses less digits than its factorization.

102198530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1863.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 102198530 is about 10109.3288600184. The cubic root of 102198530 is about 467.5358127883.

The spelling of 102198530 in words is "one hundred two million, one hundred ninety-eight thousand, five hundred thirty".