123744706 has 4 divisors (see below), whose sum is σ = 185617062. Its totient is φ = 61872352.

The previous prime is 123744703. The next prime is 123744721. The reversal of 123744706 is 607447321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 607447321 = 13 ⋅46726717.

It can be written as a sum of positive squares in only one way, i.e., 103124025 + 20620681 = 10155^2 + 4541^2 .

It is not an unprimeable number, because it can be changed into a prime (123744703) 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 as a sum of consecutive naturals, namely, 30936175 + ... + 30936178.

Almost surely, 2^123744706 is an apocalyptic number.

123744706 is a deficient number, since it is larger than the sum of its proper divisors (61872356).

123744706 is an equidigital number, since it uses as much as digits as its factorization.

123744706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61872355.

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 123744706 is about 11124.0597804938. The cubic root of 123744706 is about 498.3206404849.

The spelling of 123744706 in words is "one hundred twenty-three million, seven hundred forty-four thousand, seven hundred six".