102002242 has 8 divisors (see below), whose sum is σ = 153057996. Its totient is φ = 50982912.

The previous prime is 102002191. The next prime is 102002249. The reversal of 102002242 is 242200201.

It can be written as a sum of positive squares in 2 ways, for example, as 90839961 + 11162281 = 9531^2 + 3341^2 .

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

It is not an unprimeable number, because it can be changed into a prime (102002249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 463 + ... + 14290.

Almost surely, 2^102002242 is an apocalyptic number.

102002242 is a deficient number, since it is larger than the sum of its proper divisors (51055754).

102002242 is a wasteful number, since it uses less digits than its factorization.

102002242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18212.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 102002242 is about 10099.6159332917. The cubic root of 102002242 is about 467.2362961310.

Adding to 102002242 its reverse (242200201), we get a palindrome (344202443).

The spelling of 102002242 in words is "one hundred two million, two thousand, two hundred forty-two".