1818202102 has 8 divisors (see below), whose sum is σ = 2731026096. Its totient is φ = 907860072.

The previous prime is 1818202081. The next prime is 1818202103. The reversal of 1818202102 is 2012028181.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1818202103) 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, 618658 + ... + 621589.

It is an arithmetic number, because the mean of its divisors is an integer number (341378262).

Almost surely, 2^1818202102 is an apocalyptic number.

1818202102 is a deficient number, since it is larger than the sum of its proper divisors (912823994).

1818202102 is a wasteful number, since it uses less digits than its factorization.

1818202102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240982.

The product of its (nonzero) digits is 512, while the sum is 25.

The square root of 1818202102 is about 42640.3811193099. The cubic root of 1818202102 is about 1220.5269832102.

The spelling of 1818202102 in words is "one billion, eight hundred eighteen million, two hundred two thousand, one hundred two".