135020229 has 4 divisors (see below), whose sum is σ = 180026976. Its totient is φ = 90013484.

The previous prime is 135020183. The next prime is 135020233. The reversal of 135020229 is 922020531.

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 135020229 - 2⁷ = 135020101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 135020199 and 135020208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135020269) 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, 22503369 + ... + 22503374.

It is an arithmetic number, because the mean of its divisors is an integer number (45006744).

Almost surely, 2^135020229 is an apocalyptic number.

It is an amenable number.

135020229 is a deficient number, since it is larger than the sum of its proper divisors (45006747).

135020229 is an equidigital number, since it uses as much as digits as its factorization.

135020229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45006746.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 135020229 is about 11619.8205235709. The cubic root of 135020229 is about 513.0184057629.

The spelling of 135020229 in words is "one hundred thirty-five million, twenty thousand, two hundred twenty-nine".