120779818 has 4 divisors (see below), whose sum is σ = 181169730. Its totient is φ = 60389908.

The previous prime is 120779767. The next prime is 120779821. The reversal of 120779818 is 818977021.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 68608089 + 52171729 = 8283^2 + 7223^2 .

It is a super-2 number, since 2×120779818² = 29175528872226248, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30194953 + ... + 30194956.

Almost surely, 2^120779818 is an apocalyptic number.

120779818 is a deficient number, since it is larger than the sum of its proper divisors (60389912).

120779818 is an equidigital number, since it uses as much as digits as its factorization.

120779818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60389911.

The product of its (nonzero) digits is 56448, while the sum is 43.

The square root of 120779818 is about 10989.9871701472. The cubic root of 120779818 is about 494.3085513045.

The spelling of 120779818 in words is "one hundred twenty million, seven hundred seventy-nine thousand, eight hundred eighteen".