135847229 has 4 divisors (see below), whose sum is σ = 155253984. Its totient is φ = 116440476.

The previous prime is 135847219. The next prime is 135847237. The reversal of 135847229 is 922748531.

135847229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 135847229 - 2⁴ = 135847213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135847219) 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, 9703367 + ... + 9703380.

It is an arithmetic number, because the mean of its divisors is an integer number (38813496).

Almost surely, 2^135847229 is an apocalyptic number.

It is an amenable number.

135847229 is a deficient number, since it is larger than the sum of its proper divisors (19406755).

135847229 is an equidigital number, since it uses as much as digits as its factorization.

135847229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19406754.

The product of its digits is 120960, while the sum is 41.

The square root of 135847229 is about 11655.3519466381. The cubic root of 135847229 is about 514.0636885053.

The spelling of 135847229 in words is "one hundred thirty-five million, eight hundred forty-seven thousand, two hundred twenty-nine".