135436443 has 8 divisors (see below), whose sum is σ = 188433408. Its totient is φ = 86365224.

The previous prime is 135436439. The next prime is 135436459. The reversal of 135436443 is 344634531.

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

It is not a de Polignac number, because 135436443 - 2² = 135436439 is a prime.

It is a super-3 number, since 3×135436443³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (135436403) 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, 981355 + ... + 981492.

It is an arithmetic number, because the mean of its divisors is an integer number (23554176).

Almost surely, 2^135436443 is an apocalyptic number.

135436443 is a deficient number, since it is larger than the sum of its proper divisors (52996965).

135436443 is a wasteful number, since it uses less digits than its factorization.

135436443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1962873.

The product of its digits is 51840, while the sum is 33.

The square root of 135436443 is about 11637.7163997066. The cubic root of 135436443 is about 513.5450093551.

The spelling of 135436443 in words is "one hundred thirty-five million, four hundred thirty-six thousand, four hundred forty-three".