131724723 has 8 divisors (see below), whose sum is σ = 189143248. Its totient is φ = 81061344.

The previous prime is 131724713. The next prime is 131724731. The reversal of 131724723 is 327427131.

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

It is not a de Polignac number, because 131724723 - 2⁴ = 131724707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131724713) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1688740 + ... + 1688817.

It is an arithmetic number, because the mean of its divisors is an integer number (23642906).

Almost surely, 2^131724723 is an apocalyptic number.

131724723 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

131724723 is a deficient number, since it is larger than the sum of its proper divisors (57418525).

131724723 is a wasteful number, since it uses less digits than its factorization.

131724723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3377573.

The product of its digits is 7056, while the sum is 30.

The square root of 131724723 is about 11477.1391470174. The cubic root of 131724723 is about 508.8101481365.

The spelling of 131724723 in words is "one hundred thirty-one million, seven hundred twenty-four thousand, seven hundred twenty-three".