134831161 has 2 divisors, whose sum is σ = 134831162. Its totient is φ = 134831160.

The previous prime is 134831149. The next prime is 134831171. The reversal of 134831161 is 161138431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82355625 + 52475536 = 9075^2 + 7244^2 .

It is a cyclic number.

It is not a de Polignac number, because 134831161 - 2⁷ = 134831033 is a prime.

It is not a weakly prime, because it can be changed into another prime (134831141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67415580 + 67415581.

It is an arithmetic number, because the mean of its divisors is an integer number (67415581).

Almost surely, 2^134831161 is an apocalyptic number.

It is an amenable number.

134831161 is a deficient number, since it is larger than the sum of its proper divisors (1).

134831161 is an equidigital number, since it uses as much as digits as its factorization.

134831161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 28.

The square root of 134831161 is about 11611.6820917557. The cubic root of 134831161 is about 512.7788350607.

Adding to 134831161 its reverse (161138431), we get a palindrome (295969592).

The spelling of 134831161 in words is "one hundred thirty-four million, eight hundred thirty-one thousand, one hundred sixty-one".