134671569 has 16 divisors (see below), whose sum is σ = 193715712. Its totient is φ = 82903808.

The previous prime is 134671561. The next prime is 134671613. The reversal of 134671569 is 965176431.

It is a cyclic number.

It is not a de Polignac number, because 134671569 - 2³ = 134671561 is a prime.

It is a super-2 number, since 2×134671569² = 36272862993843522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 134671569.

It is not an unprimeable number, because it can be changed into a prime (134671561) 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, 22209 + ... + 27614.

It is an arithmetic number, because the mean of its divisors is an integer number (12107232).

Almost surely, 2^134671569 is an apocalyptic number.

It is an amenable number.

134671569 is a deficient number, since it is larger than the sum of its proper divisors (59044143).

134671569 is a wasteful number, since it uses less digits than its factorization.

134671569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49896.

The product of its digits is 136080, while the sum is 42.

The square root of 134671569 is about 11604.8080121991. The cubic root of 134671569 is about 512.5764394412.

The spelling of 134671569 in words is "one hundred thirty-four million, six hundred seventy-one thousand, five hundred sixty-nine".