120381717 has 4 divisors (see below), whose sum is σ = 160508960. Its totient is φ = 80254476.

The previous prime is 120381713. The next prime is 120381727. The reversal of 120381717 is 717183021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 120381717 - 2² = 120381713 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 (120381713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20063617 + ... + 20063622.

It is an arithmetic number, because the mean of its divisors is an integer number (40127240).

Almost surely, 2^120381717 is an apocalyptic number.

It is an amenable number.

120381717 is a deficient number, since it is larger than the sum of its proper divisors (40127243).

120381717 is an equidigital number, since it uses as much as digits as its factorization.

120381717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40127242.

The product of its (nonzero) digits is 2352, while the sum is 30.

The square root of 120381717 is about 10971.8602342538. The cubic root of 120381717 is about 493.7648585605.

The spelling of 120381717 in words is "one hundred twenty million, three hundred eighty-one thousand, seven hundred seventeen".