134735569 has 2 divisors, whose sum is σ = 134735570. Its totient is φ = 134735568.

The previous prime is 134735563. The next prime is 134735581. The reversal of 134735569 is 965537431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81270225 + 53465344 = 9015^2 + 7312^2 .

It is an emirp because it is prime and its reverse (965537431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 134735569 - 2¹⁵ = 134702801 is a prime.

It is a super-2 number, since 2×134735569² = 36307347107507522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (134735563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67367784 + 67367785.

It is an arithmetic number, because the mean of its divisors is an integer number (67367785).

Almost surely, 2^134735569 is an apocalyptic number.

It is an amenable number.

134735569 is a deficient number, since it is larger than the sum of its proper divisors (1).

134735569 is an equidigital number, since it uses as much as digits as its factorization.

134735569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 340200, while the sum is 43.

The square root of 134735569 is about 11607.5651624275. The cubic root of 134735569 is about 512.6576238543.

The spelling of 134735569 in words is "one hundred thirty-four million, seven hundred thirty-five thousand, five hundred sixty-nine".