18202106 has 8 divisors (see below), whose sum is σ = 29403444. Its totient is φ = 8400960.

The previous prime is 18202097. The next prime is 18202123. The reversal of 18202106 is 60120281.

It can be written as a sum of positive squares in 2 ways, for example, as 18190225 + 11881 = 4265^2 + 109^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350015 + ... + 350066.

Almost surely, 2^18202106 is an apocalyptic number.

18202106 is a deficient number, since it is larger than the sum of its proper divisors (11201338).

18202106 is a wasteful number, since it uses less digits than its factorization.

18202106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700096.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 18202106 is about 4266.3926214075. The cubic root of 18202106 is about 263.0513569125.

Adding to 18202106 its reverse (60120281), we get a palindrome (78322387).

The spelling of 18202106 in words is "eighteen million, two hundred two thousand, one hundred six".