134323231 has 4 divisors (see below), whose sum is σ = 153512272. Its totient is φ = 115134192.

The previous prime is 134323229. The next prime is 134323237. The reversal of 134323231 is 132323431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132323431 = 1097 ⋅120623.

It is a cyclic number.

It is not a de Polignac number, because 134323231 - 2¹ = 134323229 is a prime.

It is a super-2 number, since 2×134323231² = 36085460772558722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134323237) 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, 9594510 + ... + 9594523.

It is an arithmetic number, because the mean of its divisors is an integer number (38378068).

Almost surely, 2^134323231 is an apocalyptic number.

134323231 is a deficient number, since it is larger than the sum of its proper divisors (19189041).

134323231 is an equidigital number, since it uses as much as digits as its factorization.

134323231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19189040.

The product of its digits is 1296, while the sum is 22.

The square root of 134323231 is about 11589.7899463278. The cubic root of 134323231 is about 512.1341188662.

Adding to 134323231 its reverse (132323431), we get a palindrome (266646662).

The spelling of 134323231 in words is "one hundred thirty-four million, three hundred twenty-three thousand, two hundred thirty-one".