134242231 has 4 divisors (see below), whose sum is σ = 135571464. Its totient is φ = 132913000.

The previous prime is 134242219. The next prime is 134242243. The reversal of 134242231 is 132242431.

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

It is an interprime number because it is at equal distance from previous prime (134242219) and next prime (134242243).

It is a cyclic number.

It is not a de Polignac number, because 134242231 - 2⁷ = 134242103 is a prime.

It is a super-2 number, since 2×134242231² = 36041953167714722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134242211) 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, 664465 + ... + 664666.

It is an arithmetic number, because the mean of its divisors is an integer number (33892866).

Almost surely, 2^134242231 is an apocalyptic number.

134242231 is a deficient number, since it is larger than the sum of its proper divisors (1329233).

134242231 is a wasteful number, since it uses less digits than its factorization.

134242231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1329232.

The product of its digits is 1152, while the sum is 22.

The square root of 134242231 is about 11586.2949643102. The cubic root of 134242231 is about 512.0311552799.

Adding to 134242231 its reverse (132242431), we get a palindrome (266484662).

The spelling of 134242231 in words is "one hundred thirty-four million, two hundred forty-two thousand, two hundred thirty-one".