135331423 has 2 divisors, whose sum is σ = 135331424. Its totient is φ = 135331422.

The previous prime is 135331411. The next prime is 135331451. The reversal of 135331423 is 324133531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135331423 - 2⁹ = 135330911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135331403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67665711 + 67665712.

It is an arithmetic number, because the mean of its divisors is an integer number (67665712).

Almost surely, 2^135331423 is an apocalyptic number.

135331423 is a deficient number, since it is larger than the sum of its proper divisors (1).

135331423 is an equidigital number, since it uses as much as digits as its factorization.

135331423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 25.

The square root of 135331423 is about 11633.2034710994. The cubic root of 135331423 is about 513.4122375009.

Adding to 135331423 its reverse (324133531), we get a palindrome (459464954).

The spelling of 135331423 in words is "one hundred thirty-five million, three hundred thirty-one thousand, four hundred twenty-three".