120820965 has 8 divisors (see below), whose sum is σ = 193313568. Its totient is φ = 64437840.

The previous prime is 120820963. The next prime is 120820991. The reversal of 120820965 is 569028021.

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

It is not a de Polignac number, because 120820965 - 2¹ = 120820963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120820963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4027351 + ... + 4027380.

It is an arithmetic number, because the mean of its divisors is an integer number (24164196).

Almost surely, 2^120820965 is an apocalyptic number.

120820965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120820965 is a deficient number, since it is larger than the sum of its proper divisors (72492603).

120820965 is an equidigital number, since it uses as much as digits as its factorization.

120820965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8054739.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 120820965 is about 10991.8590329389. The cubic root of 120820965 is about 494.3646782442.

Adding to 120820965 its reverse (569028021), we get a palindrome (689848986).

The spelling of 120820965 in words is "one hundred twenty million, eight hundred twenty thousand, nine hundred sixty-five".