136312123 has 8 divisors (see below), whose sum is σ = 137583792. Its totient is φ = 135044736.

The previous prime is 136312117. The next prime is 136312139. The reversal of 136312123 is 321213631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 136312123 - 2⁵ = 136312091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 136312094 and 136312103.

It is not an unprimeable number, because it can be changed into a prime (136312523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123711 + ... + 124807.

It is an arithmetic number, because the mean of its divisors is an integer number (17197974).

Almost surely, 2^136312123 is an apocalyptic number.

136312123 is a deficient number, since it is larger than the sum of its proper divisors (1271669).

136312123 is a wasteful number, since it uses less digits than its factorization.

136312123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2141.

The product of its digits is 648, while the sum is 22.

The square root of 136312123 is about 11675.2782836213. The cubic root of 136312123 is about 514.6494274180.

Adding to 136312123 its reverse (321213631), we get a palindrome (457525754).

It can be divided in two parts, 13 and 6312123, that added together give a palindrome (6312136).

The spelling of 136312123 in words is "one hundred thirty-six million, three hundred twelve thousand, one hundred twenty-three".