120780873 has 12 divisors (see below), whose sum is σ = 174965700. Its totient is φ = 80287776.

The previous prime is 120780859. The next prime is 120780899. The reversal of 120780873 is 378087021.

It can be written as a sum of positive squares in 2 ways, for example, as 76265289 + 44515584 = 8733^2 + 6672^2 .

It is not a de Polignac number, because 120780873 - 2¹⁴ = 120764489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120780773) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16086 + ... + 22367.

It is an arithmetic number, because the mean of its divisors is an integer number (14580475).

Almost surely, 2^120780873 is an apocalyptic number.

It is an amenable number.

120780873 is a deficient number, since it is larger than the sum of its proper divisors (54184827).

120780873 is a wasteful number, since it uses less digits than its factorization.

120780873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38808 (or 38805 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 120780873 is about 10990.0351682786. The cubic root of 120780873 is about 494.3099905461.

The spelling of 120780873 in words is "one hundred twenty million, seven hundred eighty thousand, eight hundred seventy-three".