100385216 has 14 divisors (see below), whose sum is σ = 199202040. Its totient is φ = 50192576.

The previous prime is 100385209. The next prime is 100385231. The reversal of 100385216 is 612583001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 784196 + ... + 784323.

Almost surely, 2^100385216 is an apocalyptic number.

100385216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

100385216 is a deficient number, since it is larger than the sum of its proper divisors (98816824).

100385216 is an equidigital number, since it uses as much as digits as its factorization.

100385216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1568531 (or 1568521 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 100385216 is about 10019.2422867201. The cubic root of 100385216 is about 464.7541244544.

The spelling of 100385216 in words is "one hundred million, three hundred eighty-five thousand, two hundred sixteen".