134661780745 has 8 divisors (see below), whose sum is σ = 161596790784. Its totient is φ = 107727655344.

The previous prime is 134661780709. The next prime is 134661780787. The reversal of 134661780745 is 547087166431.

It is a happy number.

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 134661780745 - 2¹⁵ = 134661747977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 134661780692 and 134661780701.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179832 + ... + 549238.

It is an arithmetic number, because the mean of its divisors is an integer number (20199598848).

Almost surely, 2^134661780745 is an apocalyptic number.

It is an amenable number.

134661780745 is a deficient number, since it is larger than the sum of its proper divisors (26935010039).

134661780745 is an equidigital number, since it uses as much as digits as its factorization.

134661780745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442319.

The product of its (nonzero) digits is 3386880, while the sum is 52.

The spelling of 134661780745 in words is "one hundred thirty-four billion, six hundred sixty-one million, seven hundred eighty thousand, seven hundred forty-five".