27193081 has 8 divisors (see below), whose sum is σ = 29336904. Its totient is φ = 25109760.

The previous prime is 27193069. The next prime is 27193091. The reversal of 27193081 is 18039172.

It can be written as a sum of positive squares in 4 ways, for example, as 9511056 + 17682025 = 3084^2 + 4205^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27193081 is a prime.

It is a super-2 number, since 2×27193081² = 1478927308545122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27193021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14190 + ... + 15991.

It is an arithmetic number, because the mean of its divisors is an integer number (3667113).

Almost surely, 2^27193081 is an apocalyptic number.

It is an amenable number.

27193081 is a deficient number, since it is larger than the sum of its proper divisors (2143823).

27193081 is a wasteful number, since it uses less digits than its factorization.

27193081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30251.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 27193081 is about 5214.6985531285. The cubic root of 27193081 is about 300.7134169243.

The spelling of 27193081 in words is "twenty-seven million, one hundred ninety-three thousand, eighty-one".