135443633 has 8 divisors (see below), whose sum is σ = 147620928. Its totient is φ = 123517584.

The previous prime is 135443617. The next prime is 135443663. The reversal of 135443633 is 336344531.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 135443633 - 2⁴ = 135443617 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135443633.

It is not an unprimeable number, because it can be changed into a prime (135443663) 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, 61685 + ... + 63842.

It is an arithmetic number, because the mean of its divisors is an integer number (18452616).

Almost surely, 2^135443633 is an apocalyptic number.

135443633 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

135443633 is a deficient number, since it is larger than the sum of its proper divisors (12177295).

135443633 is a wasteful number, since it uses less digits than its factorization.

135443633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125623.

The product of its digits is 38880, while the sum is 32.

The square root of 135443633 is about 11638.0253050077. The cubic root of 135443633 is about 513.5540968238.

The spelling of 135443633 in words is "one hundred thirty-five million, four hundred forty-three thousand, six hundred thirty-three".