135431003 has 2 divisors, whose sum is σ = 135431004. Its totient is φ = 135431002.

The previous prime is 135430991. The next prime is 135431029. The reversal of 135431003 is 300134531.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135431003 - 2¹⁶ = 135365467 is a prime.

It is not a weakly prime, because it can be changed into another prime (135431903) 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 as a sum of consecutive naturals, namely, 67715501 + 67715502.

It is an arithmetic number, because the mean of its divisors is an integer number (67715502).

Almost surely, 2^135431003 is an apocalyptic number.

135431003 is a deficient number, since it is larger than the sum of its proper divisors (1).

135431003 is an equidigital number, since it uses as much as digits as its factorization.

135431003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 135431003 is about 11637.4826745306. The cubic root of 135431003 is about 513.5381335045.

Adding to 135431003 its reverse (300134531), we get a palindrome (435565534).

The spelling of 135431003 in words is "one hundred thirty-five million, four hundred thirty-one thousand, three".