274139927 has 2 divisors, whose sum is σ = 274139928. Its totient is φ = 274139926.

The previous prime is 274139911. The next prime is 274139989. The reversal of 274139927 is 729931472.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 274139927 - 2⁴ = 274139911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (274139227) 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 as a sum of consecutive naturals, namely, 137069963 + 137069964.

It is an arithmetic number, because the mean of its divisors is an integer number (137069964).

Almost surely, 2^274139927 is an apocalyptic number.

274139927 is a deficient number, since it is larger than the sum of its proper divisors (1).

274139927 is an equidigital number, since it uses as much as digits as its factorization.

274139927 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 190512, while the sum is 44.

The square root of 274139927 is about 16557.1714673733. The cubic root of 274139927 is about 649.6170738642.

The spelling of 274139927 in words is "two hundred seventy-four million, one hundred thirty-nine thousand, nine hundred twenty-seven".