131723124 has 72 divisors (see below), whose sum is σ = 349483680. Its totient is φ = 38380608.

The previous prime is 131723107. The next prime is 131723149. The reversal of 131723124 is 421327131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 131723094 and 131723103.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55147 + ... + 57485.

It is an arithmetic number, because the mean of its divisors is an integer number (4853940).

Almost surely, 2^131723124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131723124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174741840).

131723124 is an abundant number, since it is smaller than the sum of its proper divisors (217760556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131723124 is a wasteful number, since it uses less digits than its factorization.

131723124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2397 (or 2376 counting only the distinct ones).

The product of its digits is 1008, while the sum is 24.

The square root of 131723124 is about 11477.0694865893. The cubic root of 131723124 is about 508.8080893210.

The spelling of 131723124 in words is "one hundred thirty-one million, seven hundred twenty-three thousand, one hundred twenty-four".