131747005 has 8 divisors (see below), whose sum is σ = 170257752. Its totient is φ = 97290048.

The previous prime is 131747003. The next prime is 131747051. The reversal of 131747005 is 500747131.

It can be written as a sum of positive squares in 4 ways, for example, as 9622404 + 122124601 = 3102^2 + 11051^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 131747005 - 2¹ = 131747003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131747003) 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, 1013374 + ... + 1013503.

It is an arithmetic number, because the mean of its divisors is an integer number (21282219).

Almost surely, 2^131747005 is an apocalyptic number.

It is an amenable number.

131747005 is a deficient number, since it is larger than the sum of its proper divisors (38510747).

131747005 is a wasteful number, since it uses less digits than its factorization.

131747005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2026895.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 131747005 is about 11478.1098182584. The cubic root of 131747005 is about 508.8388359137.

The spelling of 131747005 in words is "one hundred thirty-one million, seven hundred forty-seven thousand, five".