135144442403 has 8 divisors (see below), whose sum is σ = 135463640640. Its totient is φ = 134825616000.

The previous prime is 135144442373. The next prime is 135144442417. The reversal of 135144442403 is 304244441531.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 135144442403 - 2⁶ = 135144442339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135140442403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 641633 + ... + 825821.

It is an arithmetic number, because the mean of its divisors is an integer number (16932955080).

Almost surely, 2^135144442403 is an apocalyptic number.

135144442403 is a deficient number, since it is larger than the sum of its proper divisors (319198237).

135144442403 is an equidigital number, since it uses as much as digits as its factorization.

135144442403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185917.

The product of its (nonzero) digits is 92160, while the sum is 35.

Adding to 135144442403 its reverse (304244441531), we get a palindrome (439388883934).

The spelling of 135144442403 in words is "one hundred thirty-five billion, one hundred forty-four million, four hundred forty-two thousand, four hundred three".