120565215 has 48 divisors (see below), whose sum is σ = 216530496. Its totient is φ = 62016000.

The previous prime is 120565213. The next prime is 120565217. The reversal of 120565215 is 512565021.

120565215 is a `hidden beast` number, since 1 + 2 + 0 + 5 + 652 + 1 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (120565213) and next prime (120565217).

It is not a de Polignac number, because 120565215 - 2¹ = 120565213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120565213) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 186022 + ... + 186668.

It is an arithmetic number, because the mean of its divisors is an integer number (4511052).

Almost surely, 2^120565215 is an apocalyptic number.

120565215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

120565215 is a deficient number, since it is larger than the sum of its proper divisors (95965281).

120565215 is a wasteful number, since it uses less digits than its factorization.

120565215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800 (or 797 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 120565215 is about 10980.2192601059. The cubic root of 120565215 is about 494.0156133231.

It can be divided in two parts, 12056 and 5215, that added together give a palindrome (17271).

The spelling of 120565215 in words is "one hundred twenty million, five hundred sixty-five thousand, two hundred fifteen".