134342023 has 4 divisors (see below), whose sum is σ = 134365528. Its totient is φ = 134318520.

The previous prime is 134341979. The next prime is 134342051. The reversal of 134342023 is 320243431.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134342023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 134341985 and 134342003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134342053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2965 + ... + 16657.

It is an arithmetic number, because the mean of its divisors is an integer number (33591382).

Almost surely, 2^134342023 is an apocalyptic number.

134342023 is a deficient number, since it is larger than the sum of its proper divisors (23505).

134342023 is an equidigital number, since it uses as much as digits as its factorization.

134342023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23504.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 134342023 is about 11590.6006315462. The cubic root of 134342023 is about 512.1580005024.

Adding to 134342023 its reverse (320243431), we get a palindrome (454585454).

The spelling of 134342023 in words is "one hundred thirty-four million, three hundred forty-two thousand, twenty-three".