100279117 has 4 divisors (see below), whose sum is σ = 100308636. Its totient is φ = 100249600.

The previous prime is 100279097. The next prime is 100279121. The reversal of 100279117 is 711972001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 711972001 = 13 ⋅54767077.

It can be written as a sum of positive squares in 2 ways, for example, as 94984516 + 5294601 = 9746^2 + 2301^2 .

It is a cyclic number.

It is not a de Polignac number, because 100279117 - 2¹¹ = 100277069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100219117) 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, 8884 + ... + 16717.

It is an arithmetic number, because the mean of its divisors is an integer number (25077159).

Almost surely, 2^100279117 is an apocalyptic number.

It is an amenable number.

100279117 is a deficient number, since it is larger than the sum of its proper divisors (29519).

100279117 is an equidigital number, since it uses as much as digits as its factorization.

100279117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29518.

The product of its (nonzero) digits is 882, while the sum is 28.

The square root of 100279117 is about 10013.9461252795. The cubic root of 100279117 is about 464.5903309789.

The spelling of 100279117 in words is "one hundred million, two hundred seventy-nine thousand, one hundred seventeen".