27142845 has 8 divisors (see below), whose sum is σ = 43428576. Its totient is φ = 14476176.

The previous prime is 27142823. The next prime is 27142859. The reversal of 27142845 is 54824172.

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

It is not a de Polignac number, because 27142845 - 2⁹ = 27142333 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 904747 + ... + 904776.

It is an arithmetic number, because the mean of its divisors is an integer number (5428572).

Almost surely, 2^27142845 is an apocalyptic number.

It is an amenable number.

27142845 is a deficient number, since it is larger than the sum of its proper divisors (16285731).

27142845 is a wasteful number, since it uses less digits than its factorization.

27142845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1809531.

The product of its digits is 17920, while the sum is 33.

The square root of 27142845 is about 5209.8795571491. The cubic root of 27142845 is about 300.5281252889.

The spelling of 27142845 in words is "twenty-seven million, one hundred forty-two thousand, eight hundred forty-five".