135523654453 has 16 divisors (see below), whose sum is σ = 148364084736. Its totient is φ = 122770391040.

The previous prime is 135523654447. The next prime is 135523654481. The reversal of 135523654453 is 354456325531.

It is not a de Polignac number, because 135523654453 - 2¹³ = 135523646261 is a prime.

It is a super-2 number, since 2×135523654453² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135523654753) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6073525 + ... + 6095797.

It is an arithmetic number, because the mean of its divisors is an integer number (9272755296).

Almost surely, 2^135523654453 is an apocalyptic number.

It is an amenable number.

135523654453 is a deficient number, since it is larger than the sum of its proper divisors (12840430283).

135523654453 is a wasteful number, since it uses less digits than its factorization.

135523654453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24204.

The product of its digits is 3240000, while the sum is 46.

Adding to 135523654453 its reverse (354456325531), we get a palindrome (489979979984).

The spelling of 135523654453 in words is "one hundred thirty-five billion, five hundred twenty-three million, six hundred fifty-four thousand, four hundred fifty-three".