27143139 has 8 divisors (see below), whose sum is σ = 36218560. Its totient is φ = 18081576.

The previous prime is 27143119. The next prime is 27143161. The reversal of 27143139 is 93134172.

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

It is not a de Polignac number, because 27143139 - 2⁹ = 27142627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27143119) 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, 2652 + ... + 7830.

It is an arithmetic number, because the mean of its divisors is an integer number (4527320).

Almost surely, 2^27143139 is an apocalyptic number.

27143139 is a deficient number, since it is larger than the sum of its proper divisors (9075421).

27143139 is a wasteful number, since it uses less digits than its factorization.

27143139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6929.

The product of its digits is 4536, while the sum is 30.

The square root of 27143139 is about 5209.9077726962. The cubic root of 27143139 is about 300.5292103502.

The spelling of 27143139 in words is "twenty-seven million, one hundred forty-three thousand, one hundred thirty-nine".