120645115 has 8 divisors (see below), whose sum is σ = 144843408. Its totient is φ = 96469920.

The previous prime is 120645113. The next prime is 120645131. The reversal of 120645115 is 511546021.

It is a happy number.

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

It is not a de Polignac number, because 120645115 - 2¹ = 120645113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120645115.

It is not an unprimeable number, because it can be changed into a prime (120645113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9304 + ... + 18106.

It is an arithmetic number, because the mean of its divisors is an integer number (18105426).

Almost surely, 2^120645115 is an apocalyptic number.

120645115 is a deficient number, since it is larger than the sum of its proper divisors (24198293).

120645115 is an equidigital number, since it uses as much as digits as its factorization.

120645115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11549.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 120645115 is about 10983.8570183702. The cubic root of 120645115 is about 494.1247192296.

The spelling of 120645115 in words is "one hundred twenty million, six hundred forty-five thousand, one hundred fifteen".