123082778 has 16 divisors (see below), whose sum is σ = 227230080. Its totient is φ = 48692016.

The previous prime is 123082759. The next prime is 123082787. The reversal of 123082778 is 877280321.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337958 + ... + 338321.

It is an arithmetic number, because the mean of its divisors is an integer number (14201880).

Almost surely, 2^123082778 is an apocalyptic number.

123082778 is a deficient number, since it is larger than the sum of its proper divisors (104147302).

123082778 is a wasteful number, since it uses less digits than its factorization.

123082778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676301.

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 123082778 is about 11094.2677991835. The cubic root of 123082778 is about 497.4305221865.

The spelling of 123082778 in words is "one hundred twenty-three million, eighty-two thousand, seven hundred seventy-eight".