120817772 has 6 divisors (see below), whose sum is σ = 211431108. Its totient is φ = 60408884.

The previous prime is 120817769. The next prime is 120817783. The reversal of 120817772 is 277718021.

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, 15102218 + ... + 15102225.

It is an arithmetic number, because the mean of its divisors is an integer number (35238518).

Almost surely, 2^120817772 is an apocalyptic number.

It is an amenable number.

120817772 is a deficient number, since it is larger than the sum of its proper divisors (90613336).

120817772 is a wasteful number, since it uses less digits than its factorization.

120817772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30204447 (or 30204445 counting only the distinct ones).

The product of its (nonzero) digits is 10976, while the sum is 35.

The square root of 120817772 is about 10991.7137881224. The cubic root of 120817772 is about 494.3603232596.

The spelling of 120817772 in words is "one hundred twenty million, eight hundred seventeen thousand, seven hundred seventy-two".