120549239419 has 4 divisors (see below), whose sum is σ = 137770559344. Its totient is φ = 103327919496.

The previous prime is 120549239399. The next prime is 120549239431. The reversal of 120549239419 is 914932945021.

It is a happy number.

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 120549239419 - 2¹³ = 120549231227 is a prime.

It is a super-2 number, since 2×120549239419² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120549234419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8610659952 + ... + 8610659965.

It is an arithmetic number, because the mean of its divisors is an integer number (34442639836).

Almost surely, 2^120549239419 is an apocalyptic number.

120549239419 is a deficient number, since it is larger than the sum of its proper divisors (17221319925).

120549239419 is an equidigital number, since it uses as much as digits as its factorization.

120549239419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17221319924.

The product of its (nonzero) digits is 699840, while the sum is 49.

The spelling of 120549239419 in words is "one hundred twenty billion, five hundred forty-nine million, two hundred thirty-nine thousand, four hundred nineteen".