120720613 has 8 divisors (see below), whose sum is σ = 130366208. Its totient is φ = 111126384.

The previous prime is 120720599. The next prime is 120720617. The reversal of 120720613 is 316027021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120720613 - 2⁹ = 120720101 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 (120720617) 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 7 ways as a sum of consecutive naturals, for example, 7881 + ... + 17422.

It is an arithmetic number, because the mean of its divisors is an integer number (16295776).

Almost surely, 2^120720613 is an apocalyptic number.

120720613 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

120720613 is a deficient number, since it is larger than the sum of its proper divisors (9645595).

120720613 is a wasteful number, since it uses less digits than its factorization.

120720613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25683.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 120720613 is about 10987.2932517522. The cubic root of 120720613 is about 494.2277698145.

Adding to 120720613 its reverse (316027021), we get a palindrome (436747634).

The spelling of 120720613 in words is "one hundred twenty million, seven hundred twenty thousand, six hundred thirteen".