134869279 has 4 divisors (see below), whose sum is σ = 142802784. Its totient is φ = 126935776.

The previous prime is 134869261. The next prime is 134869289. The reversal of 134869279 is 972968431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 134869279 - 2⁵ = 134869247 is a prime.

It is a super-3 number, since 3×134869279³ (a number of 25 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134869219) 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 3 ways as a sum of consecutive naturals, for example, 3966727 + ... + 3966760.

It is an arithmetic number, because the mean of its divisors is an integer number (35700696).

Almost surely, 2^134869279 is an apocalyptic number.

134869279 is a deficient number, since it is larger than the sum of its proper divisors (7933505).

134869279 is an equidigital number, since it uses as much as digits as its factorization.

134869279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7933504.

The product of its digits is 653184, while the sum is 49.

The square root of 134869279 is about 11613.3233400263. The cubic root of 134869279 is about 512.8271529269.

The spelling of 134869279 in words is "one hundred thirty-four million, eight hundred sixty-nine thousand, two hundred seventy-nine".