135503143 has 8 divisors (see below), whose sum is σ = 143714016. Its totient is φ = 127485600.

The previous prime is 135503131. The next prime is 135503149. The reversal of 135503143 is 341305531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135503143 is a prime.

It is a super-2 number, since 2×135503143² = 36722203525756898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135503149) 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 7 ways as a sum of consecutive naturals, for example, 46888 + ... + 49693.

It is an arithmetic number, because the mean of its divisors is an integer number (17964252).

Almost surely, 2^135503143 is an apocalyptic number.

135503143 is a deficient number, since it is larger than the sum of its proper divisors (8210873).

135503143 is an equidigital number, since it uses as much as digits as its factorization.

135503143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96665.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 135503143 is about 11640.5817294498. The cubic root of 135503143 is about 513.6292993976.

Adding to 135503143 its reverse (341305531), we get a palindrome (476808674).

The spelling of 135503143 in words is "one hundred thirty-five million, five hundred three thousand, one hundred forty-three".