100919223 has 8 divisors (see below), whose sum is σ = 149510000. Its totient is φ = 67279464.

The previous prime is 100919207. The next prime is 100919233. The reversal of 100919223 is 322919001.

It is not a de Polignac number, because 100919223 - 2⁴ = 100919207 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 3737749 = 100919223 / (1 + 0 + 0 + 9 + 1 + 9 + 2 + 2 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100919233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1868848 + ... + 1868901.

It is an arithmetic number, because the mean of its divisors is an integer number (18688750).

Almost surely, 2^100919223 is an apocalyptic number.

100919223 is a deficient number, since it is larger than the sum of its proper divisors (48590777).

100919223 is an equidigital number, since it uses as much as digits as its factorization.

100919223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3737758 (or 3737752 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 100919223 is about 10045.8560113113. The cubic root of 100919223 is about 465.5767660980.

The spelling of 100919223 in words is "one hundred million, nine hundred nineteen thousand, two hundred twenty-three".