134666679 has 16 divisors (see below), whose sum is σ = 214129152. Its totient is φ = 73606368.

The previous prime is 134666663. The next prime is 134666687. The reversal of 134666679 is 976666431.

134666679 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 134666679 - 2⁴ = 134666663 is a prime.

It is a super-2 number, since 2×134666679² = 36270228865778082, which contains 22 as substring.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134666689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138924 + ... + 139889.

It is an arithmetic number, because the mean of its divisors is an integer number (13383072).

Almost surely, 2^134666679 is an apocalyptic number.

134666679 is a deficient number, since it is larger than the sum of its proper divisors (79462473).

134666679 is a wasteful number, since it uses less digits than its factorization.

134666679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278846.

The product of its digits is 979776, while the sum is 48.

The square root of 134666679 is about 11604.5973217514. The cubic root of 134666679 is about 512.5702353871.

The spelling of 134666679 in words is "one hundred thirty-four million, six hundred sixty-six thousand, six hundred seventy-nine".