135553433 has 4 divisors (see below), whose sum is σ = 135646080. Its totient is φ = 135460788.

The previous prime is 135553409. The next prime is 135553441. The reversal of 135553433 is 334355531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135553433 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 135553433.

It is not an unprimeable number, because it can be changed into a prime (135553403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44093 + ... + 47066.

It is an arithmetic number, because the mean of its divisors is an integer number (33911520).

Almost surely, 2^135553433 is an apocalyptic number.

It is an amenable number.

135553433 is a deficient number, since it is larger than the sum of its proper divisors (92647).

135553433 is an equidigital number, since it uses as much as digits as its factorization.

135553433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92646.

The product of its digits is 40500, while the sum is 32.

The square root of 135553433 is about 11642.7416444753. The cubic root of 135553433 is about 513.6928335268.

The spelling of 135553433 in words is "one hundred thirty-five million, five hundred fifty-three thousand, four hundred thirty-three".