27145443 has 16 divisors (see below), whose sum is σ = 39132576. Its totient is φ = 16638720.

The previous prime is 27145423. The next prime is 27145477. The reversal of 27145443 is 34454172.

It is not a de Polignac number, because 27145443 - 2⁵ = 27145411 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27145443.

It is not an unprimeable number, because it can be changed into a prime (27145423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9721 + ... + 12197.

It is an arithmetic number, because the mean of its divisors is an integer number (2445786).

Almost surely, 2^27145443 is an apocalyptic number.

27145443 is a deficient number, since it is larger than the sum of its proper divisors (11987133).

27145443 is a wasteful number, since it uses less digits than its factorization.

27145443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2774.

The product of its digits is 13440, while the sum is 30.

The square root of 27145443 is about 5210.1288851621. The cubic root of 27145443 is about 300.5377134162.

The spelling of 27145443 in words is "twenty-seven million, one hundred forty-five thousand, four hundred forty-three".