136703123 has 4 divisors (see below), whose sum is σ = 140397840. Its totient is φ = 133008408.

The previous prime is 136703117. The next prime is 136703173. The reversal of 136703123 is 321307631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321307631 = 23 ⋅13969897.

It is a cyclic number.

It is not a de Polignac number, because 136703123 - 2²⁴ = 119925907 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 136703092 and 136703101.

It is not an unprimeable number, because it can be changed into a prime (136703173) 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 3 ways as a sum of consecutive naturals, for example, 1847303 + ... + 1847376.

It is an arithmetic number, because the mean of its divisors is an integer number (35099460).

Almost surely, 2^136703123 is an apocalyptic number.

136703123 is a deficient number, since it is larger than the sum of its proper divisors (3694717).

136703123 is an equidigital number, since it uses as much as digits as its factorization.

136703123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3694716.

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 136703123 is about 11692.0110759441. The cubic root of 136703123 is about 515.1410340481.

The spelling of 136703123 in words is "one hundred thirty-six million, seven hundred three thousand, one hundred twenty-three".