134240231 has 2 divisors, whose sum is σ = 134240232. Its totient is φ = 134240230.

The previous prime is 134240221. The next prime is 134240269. The reversal of 134240231 is 132042431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 134240231 - 2¹⁸ = 133978087 is a prime.

It is a super-2 number, since 2×134240231² = 36040879237866722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134240221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67120115 + 67120116.

It is an arithmetic number, because the mean of its divisors is an integer number (67120116).

Almost surely, 2^134240231 is an apocalyptic number.

134240231 is a deficient number, since it is larger than the sum of its proper divisors (1).

134240231 is an equidigital number, since it uses as much as digits as its factorization.

134240231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 134240231 is about 11586.2086551210. The cubic root of 134240231 is about 512.0286124452.

Adding to 134240231 its reverse (132042431), we get a palindrome (266282662).

The spelling of 134240231 in words is "one hundred thirty-four million, two hundred forty thousand, two hundred thirty-one".