135404434241 has 4 divisors (see below), whose sum is σ = 135408711984. Its totient is φ = 135400156500.

The previous prime is 135404434219. The next prime is 135404434259. The reversal of 135404434241 is 142434404531.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135404434241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135404434201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2091035 + ... + 2154816.

It is an arithmetic number, because the mean of its divisors is an integer number (33852177996).

Almost surely, 2^135404434241 is an apocalyptic number.

It is an amenable number.

135404434241 is a deficient number, since it is larger than the sum of its proper divisors (4277743).

135404434241 is an equidigital number, since it uses as much as digits as its factorization.

135404434241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4277742.

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

Adding to 135404434241 its reverse (142434404531), we get a palindrome (277838838772).

The spelling of 135404434241 in words is "one hundred thirty-five billion, four hundred four million, four hundred thirty-four thousand, two hundred forty-one".