135170489 has 2 divisors, whose sum is σ = 135170490. Its totient is φ = 135170488.

The previous prime is 135170461. The next prime is 135170531. The reversal of 135170489 is 984071531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76387600 + 58782889 = 8740^2 + 7667^2 .

It is an emirp because it is prime and its reverse (984071531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135170489 - 2²⁰ = 134121913 is a prime.

It is a super-2 number, since 2×135170489² = 36542122192998242, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (135170419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67585244 + 67585245.

It is an arithmetic number, because the mean of its divisors is an integer number (67585245).

Almost surely, 2^135170489 is an apocalyptic number.

It is an amenable number.

135170489 is a deficient number, since it is larger than the sum of its proper divisors (1).

135170489 is an equidigital number, since it uses as much as digits as its factorization.

135170489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 135170489 is about 11626.2844021639. The cubic root of 135170489 is about 513.2086428561.

The spelling of 135170489 in words is "one hundred thirty-five million, one hundred seventy thousand, four hundred eighty-nine".