131648123 has 4 divisors (see below), whose sum is σ = 132097728. Its totient is φ = 131198520.

The previous prime is 131648117. The next prime is 131648137. The reversal of 131648123 is 321846131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131648123 - 2⁴ = 131648107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131648623) 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 3 ways as a sum of consecutive naturals, for example, 224363 + ... + 224948.

It is an arithmetic number, because the mean of its divisors is an integer number (33024432).

Almost surely, 2^131648123 is an apocalyptic number.

131648123 is a deficient number, since it is larger than the sum of its proper divisors (449605).

131648123 is an equidigital number, since it uses as much as digits as its factorization.

131648123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449604.

The product of its digits is 3456, while the sum is 29.

The square root of 131648123 is about 11473.8015931948. The cubic root of 131648123 is about 508.7115019757.

The spelling of 131648123 in words is "one hundred thirty-one million, six hundred forty-eight thousand, one hundred twenty-three".