123607705 has 16 divisors (see below), whose sum is σ = 160154064. Its totient is φ = 91042560.

The previous prime is 123607699. The next prime is 123607721. The reversal of 123607705 is 507706321.

It can be written as a sum of positive squares in 8 ways, for example, as 85895824 + 37711881 = 9268^2 + 6141^2 .

It is not a de Polignac number, because 123607705 - 2²⁵ = 90053273 is a prime.

It is a Duffinian number.

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, 25107 + ... + 29623.

It is an arithmetic number, because the mean of its divisors is an integer number (10009629).

Almost surely, 2^123607705 is an apocalyptic number.

It is an amenable number.

123607705 is a deficient number, since it is larger than the sum of its proper divisors (36546359).

123607705 is a wasteful number, since it uses less digits than its factorization.

123607705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4956.

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 123607705 is about 11117.9002064239. The cubic root of 123607705 is about 498.1366713050.

The spelling of 123607705 in words is "one hundred twenty-three million, six hundred seven thousand, seven hundred five".