27129453 has 8 divisors (see below), whose sum is σ = 38955168. Its totient is φ = 16695024.

The previous prime is 27129437. The next prime is 27129491. The reversal of 27129453 is 35492172.

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

It is not a de Polignac number, because 27129453 - 2⁴ = 27129437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27129493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 347775 + ... + 347852.

It is an arithmetic number, because the mean of its divisors is an integer number (4869396).

Almost surely, 2^27129453 is an apocalyptic number.

It is an amenable number.

27129453 is a deficient number, since it is larger than the sum of its proper divisors (11825715).

27129453 is a wasteful number, since it uses less digits than its factorization.

27129453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695643.

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

The square root of 27129453 is about 5208.5941481363. The cubic root of 27129453 is about 300.4786913313.

The spelling of 27129453 in words is "twenty-seven million, one hundred twenty-nine thousand, four hundred fifty-three".