120146977 has 4 divisors (see below), whose sum is σ = 121792900. Its totient is φ = 118501056.

The previous prime is 120146969. The next prime is 120146989. The reversal of 120146977 is 779641021.

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

It can be written as a sum of positive squares in 2 ways, for example, as 91374481 + 28772496 = 9559^2 + 5364^2 .

It is a cyclic number.

It is not a de Polignac number, because 120146977 - 2³ = 120146969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120146927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 822852 + ... + 822997.

It is an arithmetic number, because the mean of its divisors is an integer number (30448225).

Almost surely, 2^120146977 is an apocalyptic number.

It is an amenable number.

120146977 is a deficient number, since it is larger than the sum of its proper divisors (1645923).

120146977 is an equidigital number, since it uses as much as digits as its factorization.

120146977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1645922.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 120146977 is about 10961.1576487158. The cubic root of 120146977 is about 493.4437085131.

Adding to 120146977 its reverse (779641021), we get a palindrome (899787998).

The spelling of 120146977 in words is "one hundred twenty million, one hundred forty-six thousand, nine hundred seventy-seven".