131723325 has 18 divisors (see below), whose sum is σ = 235931514. Its totient is φ = 70252320.

The previous prime is 131723321. The next prime is 131723351. The reversal of 131723325 is 523327131.

131723325 is a `hidden beast` number, since 1 + 317 + 23 + 325 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 14953689 + 116769636 = 3867^2 + 10806^2 .

It is not a de Polignac number, because 131723325 - 2² = 131723321 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131723321) 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 17 ways as a sum of consecutive naturals, for example, 292494 + ... + 292943.

Almost surely, 2^131723325 is an apocalyptic number.

131723325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131723325 is a deficient number, since it is larger than the sum of its proper divisors (104208189).

131723325 is a wasteful number, since it uses less digits than its factorization.

131723325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585453 (or 585445 counting only the distinct ones).

The product of its digits is 3780, while the sum is 27.

The square root of 131723325 is about 11477.0782431767. The cubic root of 131723325 is about 508.8083481223.

It can be divided in two parts, 1317 and 23325, that added together give a palindrome (24642).

The spelling of 131723325 in words is "one hundred thirty-one million, seven hundred twenty-three thousand, three hundred twenty-five".