27445142 has 4 divisors (see below), whose sum is σ = 41167716. Its totient is φ = 13722570.

The previous prime is 27445129. The next prime is 27445147. The reversal of 27445142 is 24154472.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27445147) 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 as a sum of consecutive naturals, namely, 6861284 + ... + 6861287.

It is an arithmetic number, because the mean of its divisors is an integer number (10291929).

Almost surely, 2^27445142 is an apocalyptic number.

27445142 is a deficient number, since it is larger than the sum of its proper divisors (13722574).

27445142 is a wasteful number, since it uses less digits than its factorization.

27445142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13722573.

The product of its digits is 8960, while the sum is 29.

The square root of 27445142 is about 5238.8111246732. The cubic root of 27445142 is about 301.6396957393.

The spelling of 27445142 in words is "twenty-seven million, four hundred forty-five thousand, one hundred forty-two".