135023241 has 4 divisors (see below), whose sum is σ = 180030992. Its totient is φ = 90015492.

The previous prime is 135023237. The next prime is 135023261. The reversal of 135023241 is 142320531.

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, and also an emirpimes, since its reverse is a distinct semiprime: 142320531 = 3 ⋅47440177.

It is not a de Polignac number, because 135023241 - 2² = 135023237 is a prime.

It is a super-2 number, since 2×135023241² = 36462551220288162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135023261) 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, 22503871 + ... + 22503876.

It is an arithmetic number, because the mean of its divisors is an integer number (45007748).

Almost surely, 2^135023241 is an apocalyptic number.

It is an amenable number.

135023241 is a deficient number, since it is larger than the sum of its proper divisors (45007751).

135023241 is an equidigital number, since it uses as much as digits as its factorization.

135023241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45007750.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 135023241 is about 11619.9501289808. The cubic root of 135023241 is about 513.0222204998.

Adding to 135023241 its reverse (142320531), we get a palindrome (277343772).

The spelling of 135023241 in words is "one hundred thirty-five million, twenty-three thousand, two hundred forty-one".