134711561 has 16 divisors (see below), whose sum is σ = 142574784. Its totient is φ = 127116864.

The previous prime is 134711543. The next prime is 134711581. The reversal of 134711561 is 165117431.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 134711561 - 2⁶ = 134711497 is a prime.

It is a super-3 number, since 3×134711561³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134711581) 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, 360971 + ... + 361343.

It is an arithmetic number, because the mean of its divisors is an integer number (8910924).

Almost surely, 2^134711561 is an apocalyptic number.

It is an amenable number.

134711561 is a deficient number, since it is larger than the sum of its proper divisors (7863223).

134711561 is a wasteful number, since it uses less digits than its factorization.

134711561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680.

The product of its digits is 2520, while the sum is 29.

The square root of 134711561 is about 11606.5309632120. The cubic root of 134711561 is about 512.6271725651.

Adding to 134711561 its reverse (165117431), we get a palindrome (299828992).

The spelling of 134711561 in words is "one hundred thirty-four million, seven hundred eleven thousand, five hundred sixty-one".