134555779 has 8 divisors (see below), whose sum is σ = 139286528. Its totient is φ = 129849480.

The previous prime is 134555761. The next prime is 134555789. The reversal of 134555779 is 977555431.

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 134555779 - 2⁷ = 134555651 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 (134555719) 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, 5464 + ... + 17290.

It is an arithmetic number, because the mean of its divisors is an integer number (17410816).

Almost surely, 2^134555779 is an apocalyptic number.

134555779 is a deficient number, since it is larger than the sum of its proper divisors (4730749).

134555779 is a wasteful number, since it uses less digits than its factorization.

134555779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12225.

The product of its digits is 661500, while the sum is 46.

The square root of 134555779 is about 11599.8180589180. The cubic root of 134555779 is about 512.4294936915.

The spelling of 134555779 in words is "one hundred thirty-four million, five hundred fifty-five thousand, seven hundred seventy-nine".