120553315 has 8 divisors (see below), whose sum is σ = 144740448. Its totient is φ = 96391680.

The previous prime is 120553313. The next prime is 120553331. The reversal of 120553315 is 513355021.

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

It is not a de Polignac number, because 120553315 - 2¹ = 120553313 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 120553315.

It is not an unprimeable number, because it can be changed into a prime (120553313) 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 7 ways as a sum of consecutive naturals, for example, 6339 + ... + 16771.

It is an arithmetic number, because the mean of its divisors is an integer number (18092556).

Almost surely, 2^120553315 is an apocalyptic number.

120553315 is a deficient number, since it is larger than the sum of its proper divisors (24187133).

120553315 is a wasteful number, since it uses less digits than its factorization.

120553315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12749.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 120553315 is about 10979.6773632015. The cubic root of 120553315 is about 493.9993593833. Note that the first 3 decimals are identical.

The spelling of 120553315 in words is "one hundred twenty million, five hundred fifty-three thousand, three hundred fifteen".