1375687705 has 16 divisors (see below), whose sum is σ = 1887963264. Its totient is φ = 942675840.

The previous prime is 1375687699. The next prime is 1375687721. The reversal of 1375687705 is 5077865731.

It is not a de Polignac number, because 1375687705 - 2⁹ = 1375687193 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40749 + ... + 66421.

It is an arithmetic number, because the mean of its divisors is an integer number (117997704).

Almost surely, 2^1375687705 is an apocalyptic number.

It is an amenable number.

1375687705 is a deficient number, since it is larger than the sum of its proper divisors (512275559).

1375687705 is a wasteful number, since it uses less digits than its factorization.

1375687705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27216.

The product of its (nonzero) digits is 1234800, while the sum is 49.

The square root of 1375687705 is about 37090.2642886243. The cubic root of 1375687705 is about 1112.1754013230.

The spelling of 1375687705 in words is "one billion, three hundred seventy-five million, six hundred eighty-seven thousand, seven hundred five".