135078289 has 2 divisors, whose sum is σ = 135078290. Its totient is φ = 135078288.

The previous prime is 135078283. The next prime is 135078341. The reversal of 135078289 is 982870531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72114064 + 62964225 = 8492^2 + 7935^2 .

It is a cyclic number.

It is not a de Polignac number, because 135078289 - 2⁹ = 135077777 is a prime.

It is a super-2 number, since 2×135078289² = 36492288318335042, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (135078283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67539144 + 67539145.

It is an arithmetic number, because the mean of its divisors is an integer number (67539145).

Almost surely, 2^135078289 is an apocalyptic number.

It is an amenable number.

135078289 is a deficient number, since it is larger than the sum of its proper divisors (1).

135078289 is an equidigital number, since it uses as much as digits as its factorization.

135078289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 135078289 is about 11622.3185724708. The cubic root of 135078289 is about 513.0919295118.

The spelling of 135078289 in words is "one hundred thirty-five million, seventy-eight thousand, two hundred eighty-nine".