135223459 has 8 divisors (see below), whose sum is σ = 154728288. Its totient is φ = 115765440.

The previous prime is 135223427. The next prime is 135223469. The reversal of 135223459 is 954322531.

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

It is not a de Polignac number, because 135223459 - 2⁵ = 135223427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135223469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5272 + ... + 17269.

It is an arithmetic number, because the mean of its divisors is an integer number (19341036).

Almost surely, 2^135223459 is an apocalyptic number.

135223459 is a deficient number, since it is larger than the sum of its proper divisors (19504829).

135223459 is an equidigital number, since it uses as much as digits as its factorization.

135223459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23405.

The product of its digits is 32400, while the sum is 34.

The square root of 135223459 is about 11628.5622069111. The cubic root of 135223459 is about 513.2756720619.

The spelling of 135223459 in words is "one hundred thirty-five million, two hundred twenty-three thousand, four hundred fifty-nine".