134219777 has 4 divisors (see below), whose sum is σ = 142115076. Its totient is φ = 126324480.

The previous prime is 134219759. The next prime is 134219807. The reversal of 134219777 is 777912431.

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

It can be written as a sum of positive squares in 2 ways, for example, as 51609856 + 82609921 = 7184^2 + 9089^2 .

It is a cyclic number.

It is not a de Polignac number, because 134219777 - 2⁶ = 134219713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134219707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3947624 + ... + 3947657.

It is an arithmetic number, because the mean of its divisors is an integer number (35528769).

Almost surely, 2^134219777 is an apocalyptic number.

134219777 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

134219777 is a deficient number, since it is larger than the sum of its proper divisors (7895299).

134219777 is an equidigital number, since it uses as much as digits as its factorization.

134219777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7895298.

The product of its digits is 74088, while the sum is 41.

The square root of 134219777 is about 11585.3259341289. The cubic root of 134219777 is about 512.0026054250.

The spelling of 134219777 in words is "one hundred thirty-four million, two hundred nineteen thousand, seven hundred seventy-seven".