100120479 has 4 divisors (see below), whose sum is σ = 133493976. Its totient is φ = 66746984.

The previous prime is 100120457. The next prime is 100120511. The reversal of 100120479 is 974021001.

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 100120479 - 2⁷ = 100120351 is a prime.

It is a super-2 number, since 2×100120479² = 20048220630378882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100120079) 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, 16686744 + ... + 16686749.

It is an arithmetic number, because the mean of its divisors is an integer number (33373494).

Almost surely, 2^100120479 is an apocalyptic number.

100120479 is a deficient number, since it is larger than the sum of its proper divisors (33373497).

100120479 is an equidigital number, since it uses as much as digits as its factorization.

100120479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33373496.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 100120479 is about 10006.0221366935. The cubic root of 100120479 is about 464.3452132122.

The spelling of 100120479 in words is "one hundred million, one hundred twenty thousand, four hundred seventy-nine".