27148457 has 8 divisors (see below), whose sum is σ = 31347456. Its totient is φ = 23029632.

The previous prime is 27148453. The next prime is 27148463. The reversal of 27148457 is 75484172.

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

It is a cyclic number.

It is not a de Polignac number, because 27148457 - 2² = 27148453 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27148457.

It is not an unprimeable number, because it can be changed into a prime (27148453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19313 + ... + 20670.

It is an arithmetic number, because the mean of its divisors is an integer number (3918432).

Almost surely, 2^27148457 is an apocalyptic number.

It is an amenable number.

27148457 is a deficient number, since it is larger than the sum of its proper divisors (4198999).

27148457 is an equidigital number, since it uses as much as digits as its factorization.

27148457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40087.

The product of its digits is 62720, while the sum is 38.

The square root of 27148457 is about 5210.4181214179. The cubic root of 27148457 is about 300.5488360584.

The spelling of 27148457 in words is "twenty-seven million, one hundred forty-eight thousand, four hundred fifty-seven".