134445779 has 8 divisors (see below), whose sum is σ = 146772192. Its totient is φ = 122402880.

The previous prime is 134445761. The next prime is 134445781. The reversal of 134445779 is 977544431.

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 134445779 - 2⁸ = 134445523 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (134445799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69887 + ... + 71784.

It is an arithmetic number, because the mean of its divisors is an integer number (18346524).

Almost surely, 2^134445779 is an apocalyptic number.

134445779 is a deficient number, since it is larger than the sum of its proper divisors (12326413).

134445779 is a wasteful number, since it uses less digits than its factorization.

134445779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141757.

The product of its digits is 423360, while the sum is 44.

The square root of 134445779 is about 11595.0756358033. The cubic root of 134445779 is about 512.2898177597.

The spelling of 134445779 in words is "one hundred thirty-four million, four hundred forty-five thousand, seven hundred seventy-nine".