2720319139 has 4 divisors (see below), whose sum is σ = 2720432920. Its totient is φ = 2720205360.

The previous prime is 2720319113. The next prime is 2720319149. The reversal of 2720319139 is 9319130272.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2720319139 - 2⁷ = 2720319011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2720319098 and 2720319107.

It is not an unprimeable number, because it can be changed into a prime (2720319109) 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, 5634 + ... + 73975.

It is an arithmetic number, because the mean of its divisors is an integer number (680108230).

Almost surely, 2^2720319139 is an apocalyptic number.

2720319139 is a deficient number, since it is larger than the sum of its proper divisors (113781).

2720319139 is an equidigital number, since it uses as much as digits as its factorization.

2720319139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113780.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 2720319139 is about 52156.6787573749. The cubic root of 2720319139 is about 1395.9610013859.

The spelling of 2720319139 in words is "two billion, seven hundred twenty million, three hundred nineteen thousand, one hundred thirty-nine".