27500145 has 8 divisors (see below), whose sum is σ = 44000256. Its totient is φ = 14666736.

The previous prime is 27500129. The next prime is 27500159. The reversal of 27500145 is 54100572.

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

It is not a de Polignac number, because 27500145 - 2⁴ = 27500129 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, 916657 + ... + 916686.

It is an arithmetic number, because the mean of its divisors is an integer number (5500032).

Almost surely, 2^27500145 is an apocalyptic number.

It is an amenable number.

27500145 is a deficient number, since it is larger than the sum of its proper divisors (16500111).

27500145 is a wasteful number, since it uses less digits than its factorization.

27500145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1833351.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 27500145 is about 5244.0580660401. The cubic root of 27500145 is about 301.8410673466.

The spelling of 27500145 in words is "twenty-seven million, five hundred thousand, one hundred forty-five".