123076780 has 12 divisors (see below), whose sum is σ = 258461280. Its totient is φ = 49230704.

The previous prime is 123076769. The next prime is 123076819. The reversal of 123076780 is 87670321.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3076900 + ... + 3076939.

It is an arithmetic number, because the mean of its divisors is an integer number (21538440).

Almost surely, 2^123076780 is an apocalyptic number.

123076780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123076780 is an abundant number, since it is smaller than the sum of its proper divisors (135384500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123076780 is a wasteful number, since it uses less digits than its factorization.

123076780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6153848 (or 6153846 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 123076780 is about 11093.9974761129. The cubic root of 123076780 is about 497.4224418881.

The spelling of 123076780 in words is "one hundred twenty-three million, seventy-six thousand, seven hundred eighty".