120156065 has 8 divisors (see below), whose sum is σ = 144248040. Its totient is φ = 96084352.

The previous prime is 120156059. The next prime is 120156073. The reversal of 120156065 is 560651021.

120156065 is nontrivially palindromic in base 3.

It can be written as a sum of positive squares in 4 ways, for example, as 1868689 + 118287376 = 1367^2 + 10876^2 .

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 120156065 - 2¹⁴ = 120139681 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15821 + ... + 22149.

It is an arithmetic number, because the mean of its divisors is an integer number (18031005).

Almost surely, 2^120156065 is an apocalyptic number.

120156065 is the 6329-th octagonal number.

It is an amenable number.

120156065 is a deficient number, since it is larger than the sum of its proper divisors (24091975).

120156065 is an equidigital number, since it uses as much as digits as its factorization.

120156065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10131.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 120156065 is about 10961.5721956296. The cubic root of 120156065 is about 493.4561496733.

The spelling of 120156065 in words is "one hundred twenty million, one hundred fifty-six thousand, sixty-five".