135553233 has 4 divisors (see below), whose sum is σ = 180737648. Its totient is φ = 90368820.

The previous prime is 135553219. The next prime is 135553309. The reversal of 135553233 is 332355531.

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 not a de Polignac number, because 135553233 - 2⁶ = 135553169 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 135553233.

It is not an unprimeable number, because it can be changed into a prime (135553213) 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, 22592203 + ... + 22592208.

It is an arithmetic number, because the mean of its divisors is an integer number (45184412).

Almost surely, 2^135553233 is an apocalyptic number.

It is an amenable number.

135553233 is a deficient number, since it is larger than the sum of its proper divisors (45184415).

135553233 is an equidigital number, since it uses as much as digits as its factorization.

135553233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45184414.

The product of its digits is 20250, while the sum is 30.

The square root of 135553233 is about 11642.7330554299. The cubic root of 135553233 is about 513.6925808869.

The spelling of 135553233 in words is "one hundred thirty-five million, five hundred fifty-three thousand, two hundred thirty-three".