131217873 has 8 divisors (see below), whose sum is σ = 179685888. Its totient is φ = 85114224.

The previous prime is 131217871. The next prime is 131217881. The reversal of 131217873 is 378712131.

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

It is not a de Polignac number, because 131217873 - 2¹ = 131217871 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (131217871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 590961 + ... + 591182.

It is an arithmetic number, because the mean of its divisors is an integer number (22460736).

Almost surely, 2^131217873 is an apocalyptic number.

It is an amenable number.

131217873 is a deficient number, since it is larger than the sum of its proper divisors (48468015).

131217873 is a wasteful number, since it uses less digits than its factorization.

131217873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182183.

The product of its digits is 7056, while the sum is 33.

The square root of 131217873 is about 11455.0370143444. The cubic root of 131217873 is about 508.1567099244.

The spelling of 131217873 in words is "one hundred thirty-one million, two hundred seventeen thousand, eight hundred seventy-three".