131053217 has 2 divisors, whose sum is σ = 131053218. Its totient is φ = 131053216.

The previous prime is 131053211. The next prime is 131053243. The reversal of 131053217 is 712350131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130051216 + 1002001 = 11404^2 + 1001^2 .

It is a cyclic number.

It is not a de Polignac number, because 131053217 - 2⁴ = 131053201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131053192 and 131053201.

It is not a weakly prime, because it can be changed into another prime (131053211) 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 as a sum of consecutive naturals, namely, 65526608 + 65526609.

It is an arithmetic number, because the mean of its divisors is an integer number (65526609).

Almost surely, 2^131053217 is an apocalyptic number.

It is an amenable number.

131053217 is a deficient number, since it is larger than the sum of its proper divisors (1).

131053217 is an equidigital number, since it uses as much as digits as its factorization.

131053217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 131053217 is about 11447.8477016424. The cubic root of 131053217 is about 507.9440710225.

The spelling of 131053217 in words is "one hundred thirty-one million, fifty-three thousand, two hundred seventeen".