134723219 has 4 divisors (see below), whose sum is σ = 135311760. Its totient is φ = 134134680.

The previous prime is 134723209. The next prime is 134723221. The reversal of 134723219 is 912327431.

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 134723219 - 2⁸ = 134722963 is a prime.

It is a super-2 number, since 2×134723219² = 36300691475443922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134723209) 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, 293927 + ... + 294384.

It is an arithmetic number, because the mean of its divisors is an integer number (33827940).

Almost surely, 2^134723219 is an apocalyptic number.

134723219 is a deficient number, since it is larger than the sum of its proper divisors (588541).

134723219 is an equidigital number, since it uses as much as digits as its factorization.

134723219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588540.

The product of its digits is 9072, while the sum is 32.

The square root of 134723219 is about 11607.0331695916. The cubic root of 134723219 is about 512.6419598018.

The spelling of 134723219 in words is "one hundred thirty-four million, seven hundred twenty-three thousand, two hundred nineteen".