100878226 has 4 divisors (see below), whose sum is σ = 151317342. Its totient is φ = 50439112.

The previous prime is 100878199. The next prime is 100878227. The reversal of 100878226 is 622878001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 622878001 = 7321 ⋅85081.

It can be written as a sum of positive squares in only one way, i.e., 91872225 + 9006001 = 9585^2 + 3001^2 .

It is a junction number, because it is equal to n+sod(n) for n = 100878191 and 100878200.

It is not an unprimeable number, because it can be changed into a prime (100878227) 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 as a sum of consecutive naturals, namely, 25219555 + ... + 25219558.

Almost surely, 2^100878226 is an apocalyptic number.

100878226 is a deficient number, since it is larger than the sum of its proper divisors (50439116).

100878226 is an equidigital number, since it uses as much as digits as its factorization.

100878226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50439115.

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 100878226 is about 10043.8153109264. The cubic root of 100878226 is about 465.5137129111.

The spelling of 100878226 in words is "one hundred million, eight hundred seventy-eight thousand, two hundred twenty-six".