139616927 has 2 divisors, whose sum is σ = 139616928. Its totient is φ = 139616926.

The previous prime is 139616909. The next prime is 139616929. The reversal of 139616927 is 729616931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 139616927 - 2⁶ = 139616863 is a prime.

Together with 139616929, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139616929) 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, 69808463 + 69808464.

It is an arithmetic number, because the mean of its divisors is an integer number (69808464).

Almost surely, 2^139616927 is an apocalyptic number.

139616927 is a deficient number, since it is larger than the sum of its proper divisors (1).

139616927 is an equidigital number, since it uses as much as digits as its factorization.

139616927 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 122472, while the sum is 44.

The square root of 139616927 is about 11815.9606888310. The cubic root of 139616927 is about 518.7753813100.

The spelling of 139616927 in words is "one hundred thirty-nine million, six hundred sixteen thousand, nine hundred twenty-seven".