136531443 has 8 divisors (see below), whose sum is σ = 186962128. Its totient is φ = 88560864.

The previous prime is 136531433. The next prime is 136531469. The reversal of 136531443 is 344135631.

136531443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 136531443 - 2⁵ = 136531411 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 136531443.

It is not an unprimeable number, because it can be changed into a prime (136531433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 614896 + ... + 615117.

It is an arithmetic number, because the mean of its divisors is an integer number (23370266).

Almost surely, 2^136531443 is an apocalyptic number.

136531443 is a deficient number, since it is larger than the sum of its proper divisors (50430685).

136531443 is a wasteful number, since it uses less digits than its factorization.

136531443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230053.

The product of its digits is 12960, while the sum is 30.

The square root of 136531443 is about 11684.6670042411. The cubic root of 136531443 is about 514.9252953506.

The spelling of 136531443 in words is "one hundred thirty-six million, five hundred thirty-one thousand, four hundred forty-three".