120782265 has 16 divisors (see below), whose sum is σ = 193388928. Its totient is φ = 64371456.

The previous prime is 120782251. The next prime is 120782273. The reversal of 120782265 is 562287021.

It is not a de Polignac number, because 120782265 - 2⁸ = 120782009 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35937 + ... + 39153.

It is an arithmetic number, because the mean of its divisors is an integer number (12086808).

Almost surely, 2^120782265 is an apocalyptic number.

120782265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120782265 is a deficient number, since it is larger than the sum of its proper divisors (72606663).

120782265 is a wasteful number, since it uses less digits than its factorization.

120782265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5728.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 120782265 is about 10990.0984981937. The cubic root of 120782265 is about 494.3118895136.

The spelling of 120782265 in words is "one hundred twenty million, seven hundred eighty-two thousand, two hundred sixty-five".