123078416 has 20 divisors (see below), whose sum is σ = 239706012. Its totient is φ = 61218816.

The previous prime is 123078413. The next prime is 123078421. The reversal of 123078416 is 614870321.

It can be written as a sum of positive squares in 2 ways, for example, as 82882816 + 40195600 = 9104^2 + 6340^2 .

It is not an unprimeable number, because it can be changed into a prime (123078413) by changing a digit.

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, 16841 + ... + 23016.

Almost surely, 2^123078416 is an apocalyptic number.

123078416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

123078416 is a deficient number, since it is larger than the sum of its proper divisors (116627596).

123078416 is a wasteful number, since it uses less digits than its factorization.

123078416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40058 (or 40052 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 123078416 is about 11094.0712094343. The cubic root of 123078416 is about 497.4246458768.

The spelling of 123078416 in words is "one hundred twenty-three million, seventy-eight thousand, four hundred sixteen".