27135429 has 4 divisors (see below), whose sum is σ = 36180576. Its totient is φ = 18090284.

The previous prime is 27135421. The next prime is 27135431. The reversal of 27135429 is 92453172.

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 27135429 - 2³ = 27135421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27135429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27135421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4522569 + ... + 4522574.

It is an arithmetic number, because the mean of its divisors is an integer number (9045144).

Almost surely, 2^27135429 is an apocalyptic number.

It is an amenable number.

27135429 is a deficient number, since it is larger than the sum of its proper divisors (9045147).

27135429 is an equidigital number, since it uses as much as digits as its factorization.

27135429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9045146.

The product of its digits is 15120, while the sum is 33.

The square root of 27135429 is about 5209.1677838211. The cubic root of 27135429 is about 300.5007525800.

The spelling of 27135429 in words is "twenty-seven million, one hundred thirty-five thousand, four hundred twenty-nine".