135455321 has 4 divisors (see below), whose sum is σ = 135590052. Its totient is φ = 135320592.

The previous prime is 135455293. The next prime is 135455339. The reversal of 135455321 is 123554531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 123554531 = 677 ⋅182503.

It can be written as a sum of positive squares in 2 ways, for example, as 1729225 + 133726096 = 1315^2 + 11564^2 .

It is a de Polignac number, because none of the positive numbers 2^k-135455321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135455521) 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 3 ways as a sum of consecutive naturals, for example, 65846 + ... + 67871.

It is an arithmetic number, because the mean of its divisors is an integer number (33897513).

Almost surely, 2^135455321 is an apocalyptic number.

It is an amenable number.

135455321 is a deficient number, since it is larger than the sum of its proper divisors (134731).

135455321 is a wasteful number, since it uses less digits than its factorization.

135455321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134730.

The product of its digits is 9000, while the sum is 29.

The square root of 135455321 is about 11638.5274412187. The cubic root of 135455321 is about 513.5688686456.

The spelling of 135455321 in words is "one hundred thirty-five million, four hundred fifty-five thousand, three hundred twenty-one".