100206242 has 4 divisors (see below), whose sum is σ = 150309366. Its totient is φ = 50103120.

The previous prime is 100206233. The next prime is 100206259. The reversal of 100206242 is 242602001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 68046001 + 32160241 = 8249^2 + 5671^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 100206242.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25051559 + ... + 25051562.

Almost surely, 2^100206242 is an apocalyptic number.

100206242 is a deficient number, since it is larger than the sum of its proper divisors (50103124).

100206242 is an equidigital number, since it uses as much as digits as its factorization.

100206242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50103123.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 100206242 is about 10010.3067885055. The cubic root of 100206242 is about 464.4777610964.

Adding to 100206242 its reverse (242602001), we get a palindrome (342808243).

The spelling of 100206242 in words is "one hundred million, two hundred six thousand, two hundred forty-two".