100240245 has 48 divisors (see below), whose sum is σ = 210263040. Its totient is φ = 43126272.

The previous prime is 100240201. The next prime is 100240271. The reversal of 100240245 is 542042001.

It is not a de Polignac number, because 100240245 - 2⁷ = 100240117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4005 + ... + 14714.

It is an arithmetic number, because the mean of its divisors is an integer number (4380480).

Almost surely, 2^100240245 is an apocalyptic number.

100240245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100240245 is an abundant number, since it is smaller than the sum of its proper divisors (110022795).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100240245 is a wasteful number, since it uses less digits than its factorization.

100240245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18754 (or 18751 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 100240245 is about 10012.0050439460. The cubic root of 100240245 is about 464.5302922592.

Adding to 100240245 its reverse (542042001), we get a palindrome (642282246).

The spelling of 100240245 in words is "one hundred million, two hundred forty thousand, two hundred forty-five".