139927747 has 8 divisors (see below), whose sum is σ = 144083232. Its totient is φ = 135792000.

The previous prime is 139927741. The next prime is 139927759. The reversal of 139927747 is 747729931.

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

It is a cyclic number.

It is not a de Polignac number, because 139927747 - 2¹¹ = 139925699 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 139927747.

It is not an unprimeable number, because it can be changed into a prime (139927741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10122 + ... + 19552.

It is an arithmetic number, because the mean of its divisors is an integer number (18010404).

Almost surely, 2^139927747 is an apocalyptic number.

139927747 is a deficient number, since it is larger than the sum of its proper divisors (4155485).

139927747 is an equidigital number, since it uses as much as digits as its factorization.

139927747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9869.

The product of its digits is 666792, while the sum is 49.

The square root of 139927747 is about 11829.1059256395. The cubic root of 139927747 is about 519.1600678431.

The spelling of 139927747 in words is "one hundred thirty-nine million, nine hundred twenty-seven thousand, seven hundred forty-seven".