134644779 has 12 divisors (see below), whose sum is σ = 199231032. Its totient is φ = 87573600.

The previous prime is 134644771. The next prime is 134644787. The reversal of 134644779 is 977446431.

134644779 is a `hidden beast` number, since 134 + 6 + 447 + 79 = 666.

It is an interprime number because it is at equal distance from previous prime (134644771) and next prime (134644787).

It is not a de Polignac number, because 134644779 - 2³ = 134644771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (134644771) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 182077 + ... + 182814.

It is an arithmetic number, because the mean of its divisors is an integer number (16602586).

Almost surely, 2^134644779 is an apocalyptic number.

134644779 is a deficient number, since it is larger than the sum of its proper divisors (64586253).

134644779 is a wasteful number, since it uses less digits than its factorization.

134644779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364938 (or 364935 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The square root of 134644779 is about 11603.6536918334. The cubic root of 134644779 is about 512.5424485166.

The spelling of 134644779 in words is "one hundred thirty-four million, six hundred forty-four thousand, seven hundred seventy-nine".