131007229 has 2 divisors, whose sum is σ = 131007230. Its totient is φ = 131007228.

The previous prime is 131007211. The next prime is 131007277. The reversal of 131007229 is 922700131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130759225 + 248004 = 11435^2 + 498^2 .

It is a cyclic number.

It is not a de Polignac number, because 131007229 - 2¹⁵ = 130974461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131007029) 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, 65503614 + 65503615.

It is an arithmetic number, because the mean of its divisors is an integer number (65503615).

Almost surely, 2^131007229 is an apocalyptic number.

It is an amenable number.

131007229 is a deficient number, since it is larger than the sum of its proper divisors (1).

131007229 is an equidigital number, since it uses as much as digits as its factorization.

131007229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 131007229 is about 11445.8389382343. The cubic root of 131007229 is about 507.8846497040.

The spelling of 131007229 in words is "one hundred thirty-one million, seven thousand, two hundred twenty-nine".