120820774 has 4 divisors (see below), whose sum is σ = 181231164. Its totient is φ = 60410386.

The previous prime is 120820769. The next prime is 120820781. The reversal of 120820774 is 477028021.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent 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 as a sum of consecutive naturals, namely, 30205192 + ... + 30205195.

It is an arithmetic number, because the mean of its divisors is an integer number (45307791).

Almost surely, 2^120820774 is an apocalyptic number.

120820774 is a deficient number, since it is larger than the sum of its proper divisors (60410390).

120820774 is an equidigital number, since it uses as much as digits as its factorization.

120820774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60410389.

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 120820774 is about 10991.8503446872. The cubic root of 120820774 is about 494.3644177383.

Adding to 120820774 its reverse (477028021), we get a palindrome (597848795).

The spelling of 120820774 in words is "one hundred twenty million, eight hundred twenty thousand, seven hundred seventy-four".