135240044455 has 4 divisors (see below), whose sum is σ = 162288053352. Its totient is φ = 108192035560.

The previous prime is 135240044417. The next prime is 135240044473. The reversal of 135240044455 is 554440042531.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 135240044455 - 2¹¹ = 135240042407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13524004441 + ... + 13524004450.

It is an arithmetic number, because the mean of its divisors is an integer number (40572013338).

Almost surely, 2^135240044455 is an apocalyptic number.

135240044455 is a deficient number, since it is larger than the sum of its proper divisors (27048008897).

135240044455 is an equidigital number, since it uses as much as digits as its factorization.

135240044455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27048008896.

The product of its (nonzero) digits is 192000, while the sum is 37.

Adding to 135240044455 its reverse (554440042531), we get a palindrome (689680086986).

The spelling of 135240044455 in words is "one hundred thirty-five billion, two hundred forty million, forty-four thousand, four hundred fifty-five".