135240444401 has 8 divisors (see below), whose sum is σ = 136590455424. Its totient is φ = 133890649200.

The previous prime is 135240444379. The next prime is 135240444481. The reversal of 135240444401 is 104444042531.

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-135240444401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135240444481) 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, 1399880 + ... + 1493366.

It is an arithmetic number, because the mean of its divisors is an integer number (17073806928).

Almost surely, 2^135240444401 is an apocalyptic number.

It is an amenable number.

135240444401 is a deficient number, since it is larger than the sum of its proper divisors (1350011023).

135240444401 is a wasteful number, since it uses less digits than its factorization.

135240444401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107911.

The product of its (nonzero) digits is 30720, while the sum is 32.

Adding to 135240444401 its reverse (104444042531), we get a palindrome (239684486932).

The spelling of 135240444401 in words is "one hundred thirty-five billion, two hundred forty million, four hundred forty-four thousand, four hundred one".