134223013 has 4 divisors (see below), whose sum is σ = 137850700. Its totient is φ = 130595328.

The previous prime is 134222989. The next prime is 134223017. The reversal of 134223013 is 310322431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 310322431 = 31 ⋅10010401.

It can be written as a sum of positive squares in 2 ways, for example, as 114447204 + 19775809 = 10698^2 + 4447^2 .

It is a cyclic number.

It is not a de Polignac number, because 134223013 - 2⁵ = 134222981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134223017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1813788 + ... + 1813861.

It is an arithmetic number, because the mean of its divisors is an integer number (34462675).

Almost surely, 2^134223013 is an apocalyptic number.

It is an amenable number.

134223013 is a deficient number, since it is larger than the sum of its proper divisors (3627687).

134223013 is an equidigital number, since it uses as much as digits as its factorization.

134223013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3627686.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 134223013 is about 11585.4655927157. The cubic root of 134223013 is about 512.0067201368.

Adding to 134223013 its reverse (310322431), we get a palindrome (444545444).

The spelling of 134223013 in words is "one hundred thirty-four million, two hundred twenty-three thousand, thirteen".