123261616 has 10 divisors (see below), whose sum is σ = 238819412. Its totient is φ = 61630800.

The previous prime is 123261613. The next prime is 123261617. The reversal of 123261616 is 616162321.

It is not an unprimeable number, because it can be changed into a prime (123261613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3851910 + ... + 3851941.

Almost surely, 2^123261616 is an apocalyptic number.

123261616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

123261616 is a deficient number, since it is larger than the sum of its proper divisors (115557796).

123261616 is an equidigital number, since it uses as much as digits as its factorization.

123261616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7703859 (or 7703853 counting only the distinct ones).

The product of its digits is 2592, while the sum is 28.

The square root of 123261616 is about 11102.3248015900. The cubic root of 123261616 is about 497.6713260590.

The spelling of 123261616 in words is "one hundred twenty-three million, two hundred sixty-one thousand, six hundred sixteen".