135264161 has 2 divisors, whose sum is σ = 135264162. Its totient is φ = 135264160.

The previous prime is 135264133. The next prime is 135264169. The reversal of 135264161 is 161462531.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71503936 + 63760225 = 8456^2 + 7985^2 .

It is a cyclic number.

It is not a de Polignac number, because 135264161 - 2¹⁸ = 135002017 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (135264169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67632080 + 67632081.

It is an arithmetic number, because the mean of its divisors is an integer number (67632081).

Almost surely, 2^135264161 is an apocalyptic number.

It is an amenable number.

135264161 is a deficient number, since it is larger than the sum of its proper divisors (1).

135264161 is an equidigital number, since it uses as much as digits as its factorization.

135264161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 29.

The square root of 135264161 is about 11630.3121626206. The cubic root of 135264161 is about 513.3271652245.

The spelling of 135264161 in words is "one hundred thirty-five million, two hundred sixty-four thousand, one hundred sixty-one".