27151893 has 36 divisors (see below), whose sum is σ = 42377868. Its totient is φ = 16744320.

The previous prime is 27151879. The next prime is 27151903. The reversal of 27151893 is 39815172.

It can be written as a sum of positive squares in 2 ways, for example, as 6874884 + 20277009 = 2622^2 + 4503^2 .

It is not a de Polignac number, because 27151893 - 2⁶ = 27151829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27151093) 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 in 35 ways as a sum of consecutive naturals, for example, 198121 + ... + 198257.

It is an arithmetic number, because the mean of its divisors is an integer number (1177163).

Almost surely, 2^27151893 is an apocalyptic number.

It is an amenable number.

27151893 is a deficient number, since it is larger than the sum of its proper divisors (15225975).

27151893 is a wasteful number, since it uses less digits than its factorization.

27151893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 220 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 27151893 is about 5210.7478350041. The cubic root of 27151893 is about 300.5615150139.

The spelling of 27151893 in words is "twenty-seven million, one hundred fifty-one thousand, eight hundred ninety-three".