27138299 has 4 divisors (see below), whose sum is σ = 28013760. Its totient is φ = 26262840.

The previous prime is 27138281. The next prime is 27138301. The reversal of 27138299 is 99283172.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27138299 is a prime.

It is a super-2 number, since 2×27138299² = 1472974545226802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27138799) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 437684 + ... + 437745.

It is an arithmetic number, because the mean of its divisors is an integer number (7003440).

Almost surely, 2^27138299 is an apocalyptic number.

27138299 is a deficient number, since it is larger than the sum of its proper divisors (875461).

27138299 is an equidigital number, since it uses as much as digits as its factorization.

27138299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875460.

The product of its digits is 54432, while the sum is 41.

The square root of 27138299 is about 5209.4432524023. The cubic root of 27138299 is about 300.5113464394.

The spelling of 27138299 in words is "twenty-seven million, one hundred thirty-eight thousand, two hundred ninety-nine".