134660661 has 8 divisors (see below), whose sum is σ = 179848704. Its totient is φ = 89623200.

The previous prime is 134660641. The next prime is 134660663. The reversal of 134660661 is 166066431.

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

It is not a de Polignac number, because 134660661 - 2⁵ = 134660629 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134660663) 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, 35541 + ... + 39146.

It is an arithmetic number, because the mean of its divisors is an integer number (22481088).

Almost surely, 2^134660661 is an apocalyptic number.

It is an amenable number.

134660661 is a deficient number, since it is larger than the sum of its proper divisors (45188043).

134660661 is an equidigital number, since it uses as much as digits as its factorization.

134660661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75291.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 134660661 is about 11604.3380250663. The cubic root of 134660661 is about 512.5626000075.

The spelling of 134660661 in words is "one hundred thirty-four million, six hundred sixty thousand, six hundred sixty-one".