120780878 has 4 divisors (see below), whose sum is σ = 181171320. Its totient is φ = 60390438.

The previous prime is 120780859. The next prime is 120780899. The reversal of 120780878 is 878087021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 878087021 = 7 ⋅125441003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30195218 + ... + 30195221.

It is an arithmetic number, because the mean of its divisors is an integer number (45292830).

Almost surely, 2^120780878 is an apocalyptic number.

120780878 is a deficient number, since it is larger than the sum of its proper divisors (60390442).

120780878 is an equidigital number, since it uses as much as digits as its factorization.

120780878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60390441.

The product of its (nonzero) digits is 50176, while the sum is 41.

The square root of 120780878 is about 10990.0353957574. The cubic root of 120780878 is about 494.3099973671.

The spelling of 120780878 in words is "one hundred twenty million, seven hundred eighty thousand, eight hundred seventy-eight".