27105745 has 8 divisors (see below), whose sum is σ = 32569920. Its totient is φ = 21655920.

The previous prime is 27105739. The next prime is 27105763. The reversal of 27105745 is 54750172.

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

It is not a de Polignac number, because 27105745 - 2⁵ = 27105713 is a prime.

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, 1140 + ... + 7450.

It is an arithmetic number, because the mean of its divisors is an integer number (4071240).

Almost surely, 2^27105745 is an apocalyptic number.

It is an amenable number.

27105745 is a deficient number, since it is larger than the sum of its proper divisors (5464175).

27105745 is an equidigital number, since it uses as much as digits as its factorization.

27105745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7175.

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 27105745 is about 5206.3177966774. The cubic root of 27105745 is about 300.3911379635.

The spelling of 27105745 in words is "twenty-seven million, one hundred five thousand, seven hundred forty-five".