102291198 has 16 divisors (see below), whose sum is σ = 204967056. Its totient is φ = 34032960.

The previous prime is 102291197. The next prime is 102291209. The reversal of 102291198 is 891192201.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102291197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12511 + ... + 19002.

It is an arithmetic number, because the mean of its divisors is an integer number (12810441).

Almost surely, 2^102291198 is an apocalyptic number.

102291198 is an abundant number, since it is smaller than the sum of its proper divisors (102675858).

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

102291198 is a wasteful number, since it uses less digits than its factorization.

102291198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32059.

The product of its (nonzero) digits is 2592, while the sum is 33.

The square root of 102291198 is about 10113.9111129177. The cubic root of 102291198 is about 467.6770820095.

The spelling of 102291198 in words is "one hundred two million, two hundred ninety-one thousand, one hundred ninety-eight".