100213856 has 24 divisors (see below), whose sum is σ = 198744840. Its totient is φ = 49739008.

The previous prime is 100213849. The next prime is 100213859. The reversal of 100213856 is 658312001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100213859) 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, 7046 + ... + 15813.

It is an arithmetic number, because the mean of its divisors is an integer number (8281035).

Almost surely, 2^100213856 is an apocalyptic number.

100213856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

100213856 is a deficient number, since it is larger than the sum of its proper divisors (98530984).

100213856 is a wasteful number, since it uses less digits than its factorization.

100213856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23006 (or 22998 counting only the distinct ones).

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

The square root of 100213856 is about 10010.6870893061. The cubic root of 100213856 is about 464.4895249814.

Adding to 100213856 its reverse (658312001), we get a palindrome (758525857).

The spelling of 100213856 in words is "one hundred million, two hundred thirteen thousand, eight hundred fifty-six".