100823851 has 4 divisors (see below), whose sum is σ = 100864192. Its totient is φ = 100783512.

The previous prime is 100823839. The next prime is 100823857. The reversal of 100823851 is 158328001.

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

It is a cyclic number.

It is not a de Polignac number, because 100823851 - 2¹¹ = 100821803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100823857) 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, 16155 + ... + 21508.

It is an arithmetic number, because the mean of its divisors is an integer number (25216048).

Almost surely, 2^100823851 is an apocalyptic number.

100823851 is a deficient number, since it is larger than the sum of its proper divisors (40341).

100823851 is an equidigital number, since it uses as much as digits as its factorization.

100823851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40340.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 100823851 is about 10041.1080563850. The cubic root of 100823851 is about 465.4300580650.

The spelling of 100823851 in words is "one hundred million, eight hundred twenty-three thousand, eight hundred fifty-one".