120724115 has 16 divisors (see below), whose sum is σ = 148203648. Its totient is φ = 94381056.

The previous prime is 120724103. The next prime is 120724147. The reversal of 120724115 is 511427021.

It is a cyclic number.

It is not a de Polignac number, because 120724115 - 2¹⁰ = 120723091 is a prime.

It is a super-3 number, since 3×120724115³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 39782 + ... + 42708.

It is an arithmetic number, because the mean of its divisors is an integer number (9262728).

Almost surely, 2^120724115 is an apocalyptic number.

120724115 is a deficient number, since it is larger than the sum of its proper divisors (27479533).

120724115 is a wasteful number, since it uses less digits than its factorization.

120724115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3118.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 120724115 is about 10987.4526165076. The cubic root of 120724115 is about 494.2325488076.

The spelling of 120724115 in words is "one hundred twenty million, seven hundred twenty-four thousand, one hundred fifteen".