135440030001 has 4 divisors (see below), whose sum is σ = 180586706672. Its totient is φ = 90293353332.

The previous prime is 135440029999. The next prime is 135440030041. The reversal of 135440030001 is 100030044531.

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, and also an emirpimes, since its reverse is a distinct semiprime: 100030044531 = 3 ⋅33343348177.

It is not a de Polignac number, because 135440030001 - 2¹ = 135440029999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135440030001.

It is not an unprimeable number, because it can be changed into a prime (135440030041) 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, 22573338331 + ... + 22573338336.

It is an arithmetic number, because the mean of its divisors is an integer number (45146676668).

Almost surely, 2^135440030001 is an apocalyptic number.

It is an amenable number.

135440030001 is a deficient number, since it is larger than the sum of its proper divisors (45146676671).

135440030001 is an equidigital number, since it uses as much as digits as its factorization.

135440030001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45146676670.

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 135440030001 its reverse (100030044531), we get a palindrome (235470074532).

The spelling of 135440030001 in words is "one hundred thirty-five billion, four hundred forty million, thirty thousand, one".