120777795 has 24 divisors (see below), whose sum is σ = 210865200. Its totient is φ = 63948096.

The previous prime is 120777781. The next prime is 120777799. The reversal of 120777795 is 597777021.

It is not a de Polignac number, because 120777795 - 2⁵ = 120777763 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 120777795.

It is not an unprimeable number, because it can be changed into a prime (120777799) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3400 + ... + 15909.

It is an arithmetic number, because the mean of its divisors is an integer number (8786050).

Almost surely, 2^120777795 is an apocalyptic number.

120777795 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

120777795 is a deficient number, since it is larger than the sum of its proper divisors (90087405).

120777795 is a wasteful number, since it uses less digits than its factorization.

120777795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19459 (or 19456 counting only the distinct ones).

The product of its (nonzero) digits is 216090, while the sum is 45.

The square root of 120777795 is about 10989.8951314378. The cubic root of 120777795 is about 494.3057914842.

The spelling of 120777795 in words is "one hundred twenty million, seven hundred seventy-seven thousand, seven hundred ninety-five".