135161233 has 2 divisors, whose sum is σ = 135161234. Its totient is φ = 135161232.

The previous prime is 135161227. The next prime is 135161239. The reversal of 135161233 is 332161531.

It is a balanced prime because it is at equal distance from previous prime (135161227) and next prime (135161239).

It can be written as a sum of positive squares in only one way, i.e., 134374464 + 786769 = 11592^2 + 887^2 .

It is a cyclic number.

It is not a de Polignac number, because 135161233 - 2⁹ = 135160721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 135161198 and 135161207.

It is not a weakly prime, because it can be changed into another prime (135161239) 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, 67580616 + 67580617.

It is an arithmetic number, because the mean of its divisors is an integer number (67580617).

Almost surely, 2^135161233 is an apocalyptic number.

It is an amenable number.

135161233 is a deficient number, since it is larger than the sum of its proper divisors (1).

135161233 is an equidigital number, since it uses as much as digits as its factorization.

135161233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620, while the sum is 25.

The square root of 135161233 is about 11625.8863318028. The cubic root of 135161233 is about 513.1969283474.

The spelling of 135161233 in words is "one hundred thirty-five million, one hundred sixty-one thousand, two hundred thirty-three".