134406561 has 8 divisors (see below), whose sum is σ = 185388480. Its totient is φ = 86514512.

The previous prime is 134406553. The next prime is 134406563. The reversal of 134406561 is 165604431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 134406561 - 2³ = 134406553 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (134406563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 772365 + ... + 772538.

It is an arithmetic number, because the mean of its divisors is an integer number (23173560).

Almost surely, 2^134406561 is an apocalyptic number.

It is an amenable number.

134406561 is a deficient number, since it is larger than the sum of its proper divisors (50981919).

134406561 is a wasteful number, since it uses less digits than its factorization.

134406561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1544935.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 134406561 is about 11593.3843635066. The cubic root of 134406561 is about 512.2400010577.

The spelling of 134406561 in words is "one hundred thirty-four million, four hundred six thousand, five hundred sixty-one".