102280198 has 8 divisors (see below), whose sum is σ = 153492120. Its totient is φ = 51116160.

The previous prime is 102280193. The next prime is 102280201. The reversal of 102280198 is 891082201.

It is a happy number.

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

It is a super-2 number, since 2×102280198² = 20922477805838408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102280193) 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, 6043 + ... + 15526.

It is an arithmetic number, because the mean of its divisors is an integer number (19186515).

Almost surely, 2^102280198 is an apocalyptic number.

102280198 is a deficient number, since it is larger than the sum of its proper divisors (51211922).

102280198 is a wasteful number, since it uses less digits than its factorization.

102280198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23942.

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 102280198 is about 10113.3672928456. The cubic root of 102280198 is about 467.6603173467.

The spelling of 102280198 in words is "one hundred two million, two hundred eighty thousand, one hundred ninety-eight".