123496709 has 12 divisors (see below), whose sum is σ = 144619488. Its totient is φ = 105147000.

The previous prime is 123496699. The next prime is 123496717. The reversal of 123496709 is 907694321.

It is not a de Polignac number, because 123496709 - 2¹² = 123492613 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123496759) 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 in 11 ways as a sum of consecutive naturals, for example, 947 + ... + 15744.

It is an arithmetic number, because the mean of its divisors is an integer number (12051624).

Almost surely, 2^123496709 is an apocalyptic number.

It is an amenable number.

123496709 is a deficient number, since it is larger than the sum of its proper divisors (21122779).

123496709 is a wasteful number, since it uses less digits than its factorization.

123496709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16856 (or 16849 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 123496709 is about 11112.9073153698. The cubic root of 123496709 is about 497.9875227381.

The spelling of 123496709 in words is "one hundred twenty-three million, four hundred ninety-six thousand, seven hundred nine".