100851998 has 8 divisors (see below), whose sum is σ = 162914808. Its totient is φ = 46547064.

The previous prime is 100851997. The next prime is 100852027. The reversal of 100851998 is 899158001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×100851998² = 20342251001184008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100851997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1939436 + ... + 1939487.

It is an arithmetic number, because the mean of its divisors is an integer number (20364351).

Almost surely, 2^100851998 is an apocalyptic number.

100851998 is a deficient number, since it is larger than the sum of its proper divisors (62062810).

100851998 is a wasteful number, since it uses less digits than its factorization.

100851998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3878938.

The product of its (nonzero) digits is 25920, while the sum is 41.

The square root of 100851998 is about 10042.5095469210. The cubic root of 100851998 is about 465.4733654134.

The spelling of 100851998 in words is "one hundred million, eight hundred fifty-one thousand, nine hundred ninety-eight".