134769217 has 16 divisors (see below), whose sum is σ = 157203072. Its totient is φ = 114174720.

The previous prime is 134769197. The next prime is 134769221. The reversal of 134769217 is 712967431.

It is not a de Polignac number, because 134769217 - 2¹¹ = 134767169 is a prime.

It is a super-3 number, since 3×134769217³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 134769217.

It is not an unprimeable number, because it can be changed into a prime (134769247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15763 + ... + 22759.

It is an arithmetic number, because the mean of its divisors is an integer number (9825192).

Almost surely, 2^134769217 is an apocalyptic number.

134769217 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

134769217 is a deficient number, since it is larger than the sum of its proper divisors (22433855).

134769217 is a wasteful number, since it uses less digits than its factorization.

134769217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7128.

The product of its digits is 63504, while the sum is 40.

The square root of 134769217 is about 11609.0144715217. The cubic root of 134769217 is about 512.7002962486.

The spelling of 134769217 in words is "one hundred thirty-four million, seven hundred sixty-nine thousand, two hundred seventeen".