136545451535543 has 4 divisors (see below), whose sum is σ = 143732054247960. Its totient is φ = 129358848823128.

The previous prime is 136545451535539. The next prime is 136545451535567. The reversal of 136545451535543 is 345535154545631.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 136545451535543 - 2² = 136545451535539 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136545451535503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3593301356180 + ... + 3593301356217.

It is an arithmetic number, because the mean of its divisors is an integer number (35933013561990).

Almost surely, 2^{136545451535543} is an apocalyptic number.

136545451535543 is a deficient number, since it is larger than the sum of its proper divisors (7186602712417).

136545451535543 is an equidigital number, since it uses as much as digits as its factorization.

136545451535543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7186602712416.

The product of its digits is 162000000, while the sum is 59.

The spelling of 136545451535543 in words is "one hundred thirty-six trillion, five hundred forty-five billion, four hundred fifty-one million, five hundred thirty-five thousand, five hundred forty-three".