136544443 has 8 divisors (see below), whose sum is σ = 156844512. Its totient is φ = 116442816.

The previous prime is 136544437. The next prime is 136544449. The reversal of 136544443 is 344445631.

It is an interprime number because it is at equal distance from previous prime (136544437) and next prime (136544449).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 136544443 - 2⁵ = 136544411 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 136544399 and 136544408.

It is not an unprimeable number, because it can be changed into a prime (136544449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48130 + ... + 50887.

It is an arithmetic number, because the mean of its divisors is an integer number (19605564).

Almost surely, 2^136544443 is an apocalyptic number.

136544443 is a deficient number, since it is larger than the sum of its proper divisors (20300069).

136544443 is an equidigital number, since it uses as much as digits as its factorization.

136544443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99221.

The product of its digits is 69120, while the sum is 34.

The square root of 136544443 is about 11685.2232755733. The cubic root of 136544443 is about 514.9416379021.

It can be divided in two parts, 13 and 6544443, that added together give a palindrome (6544456).

The spelling of 136544443 in words is "one hundred thirty-six million, five hundred forty-four thousand, four hundred forty-three".