135544220454 has 16 divisors (see below), whose sum is σ = 274519941120. Its totient is φ = 44609490120.

The previous prime is 135544220443. The next prime is 135544220459. The reversal of 135544220454 is 454022445531.

It is a super-2 number, since 2×135544220454² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135544220459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142978662 + ... + 142979609.

It is an arithmetic number, because the mean of its divisors is an integer number (17157496320).

Almost surely, 2^135544220454 is an apocalyptic number.

135544220454 is an abundant number, since it is smaller than the sum of its proper divisors (138975720666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135544220454 is a wasteful number, since it uses less digits than its factorization.

135544220454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285958355.

The product of its (nonzero) digits is 384000, while the sum is 39.

Adding to 135544220454 its reverse (454022445531), we get a palindrome (589566665985).

The spelling of 135544220454 in words is "one hundred thirty-five billion, five hundred forty-four million, two hundred twenty thousand, four hundred fifty-four".