135230143 has 2 divisors, whose sum is σ = 135230144. Its totient is φ = 135230142.

The previous prime is 135230119. The next prime is 135230149. The reversal of 135230143 is 341032531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135230143 - 2¹³ = 135221951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135230149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67615071 + 67615072.

It is an arithmetic number, because the mean of its divisors is an integer number (67615072).

Almost surely, 2^135230143 is an apocalyptic number.

135230143 is a deficient number, since it is larger than the sum of its proper divisors (1).

135230143 is an equidigital number, since it uses as much as digits as its factorization.

135230143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 135230143 is about 11628.8495991650. The cubic root of 135230143 is about 513.2841288738.

Adding to 135230143 its reverse (341032531), we get a palindrome (476262674).

The spelling of 135230143 in words is "one hundred thirty-five million, two hundred thirty thousand, one hundred forty-three".