131461217 has 2 divisors, whose sum is σ = 131461218. Its totient is φ = 131461216.

The previous prime is 131461207. The next prime is 131461237. The reversal of 131461217 is 712164131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80209936 + 51251281 = 8956^2 + 7159^2 .

It is a cyclic number.

It is not a de Polignac number, because 131461217 - 2¹⁶ = 131395681 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (131461207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65730608 + 65730609.

It is an arithmetic number, because the mean of its divisors is an integer number (65730609).

Almost surely, 2^131461217 is an apocalyptic number.

It is an amenable number.

131461217 is a deficient number, since it is larger than the sum of its proper divisors (1).

131461217 is an equidigital number, since it uses as much as digits as its factorization.

131461217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008, while the sum is 26.

The square root of 131461217 is about 11465.6537973201. The cubic root of 131461217 is about 508.4706420678.

The spelling of 131461217 in words is "one hundred thirty-one million, four hundred sixty-one thousand, two hundred seventeen".