139939627 has 2 divisors, whose sum is σ = 139939628. Its totient is φ = 139939626.

The previous prime is 139939603. The next prime is 139939637. The reversal of 139939627 is 726939931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 139939627 - 2²³ = 131551019 is a prime.

It is not a weakly prime, because it can be changed into another prime (139939637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69969813 + 69969814.

It is an arithmetic number, because the mean of its divisors is an integer number (69969814).

Almost surely, 2^139939627 is an apocalyptic number.

139939627 is a deficient number, since it is larger than the sum of its proper divisors (1).

139939627 is an equidigital number, since it uses as much as digits as its factorization.

139939627 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 551124, while the sum is 49.

The square root of 139939627 is about 11829.6080662041. The cubic root of 139939627 is about 519.1747598233.

The spelling of 139939627 in words is "one hundred thirty-nine million, nine hundred thirty-nine thousand, six hundred twenty-seven".