134240223 has 16 divisors (see below), whose sum is σ = 194149760. Its totient is φ = 82011744.

The previous prime is 134240221. The next prime is 134240231. The reversal of 134240223 is 322042431.

It is not a de Polignac number, because 134240223 - 2¹ = 134240221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 134240223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134240221) 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 15 ways as a sum of consecutive naturals, for example, 6961 + ... + 17802.

It is an arithmetic number, because the mean of its divisors is an integer number (12134360).

Almost surely, 2^134240223 is an apocalyptic number.

134240223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

134240223 is a deficient number, since it is larger than the sum of its proper divisors (59909537).

134240223 is a wasteful number, since it uses less digits than its factorization.

134240223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24918.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 134240223 is about 11586.2083098829. The cubic root of 134240223 is about 512.0286022738.

Adding to 134240223 its reverse (322042431), we get a palindrome (456282654).

The spelling of 134240223 in words is "one hundred thirty-four million, two hundred forty thousand, two hundred twenty-three".