120335665 has 8 divisors (see below), whose sum is σ = 144529128. Its totient is φ = 96184320.

The previous prime is 120335647. The next prime is 120335671. The reversal of 120335665 is 566533021.

It can be written as a sum of positive squares in 4 ways, for example, as 11675889 + 108659776 = 3417^2 + 10424^2 .

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

It is not a de Polignac number, because 120335665 - 2¹¹ = 120333617 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 3856 + ... + 15985.

It is an arithmetic number, because the mean of its divisors is an integer number (18066141).

Almost surely, 2^120335665 is an apocalyptic number.

It is an amenable number.

120335665 is a deficient number, since it is larger than the sum of its proper divisors (24193463).

120335665 is a wasteful number, since it uses less digits than its factorization.

120335665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21059.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 120335665 is about 10969.7613921179. The cubic root of 120335665 is about 493.7018873164.

Adding to 120335665 its reverse (566533021), we get a palindrome (686868686).

It can be divided in two parts, 120 and 335665, that multiplied together give a triangular number (40279800 = T₈₉₇₅).

The spelling of 120335665 in words is "one hundred twenty million, three hundred thirty-five thousand, six hundred sixty-five".