1375885747 has 2 divisors, whose sum is σ = 1375885748. Its totient is φ = 1375885746.

The previous prime is 1375885727. The next prime is 1375885757. The reversal of 1375885747 is 7475885731.

It is a strong prime.

It is an emirp because it is prime and its reverse (7475885731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1375885747 - 2⁷ = 1375885619 is a prime.

It is not a weakly prime, because it can be changed into another prime (1375885727) 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, 687942873 + 687942874.

It is an arithmetic number, because the mean of its divisors is an integer number (687942874).

Almost surely, 2^1375885747 is an apocalyptic number.

1375885747 is a deficient number, since it is larger than the sum of its proper divisors (1).

1375885747 is an equidigital number, since it uses as much as digits as its factorization.

1375885747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6585600, while the sum is 55.

The square root of 1375885747 is about 37092.9339227837. The cubic root of 1375885747 is about 1112.2287678129.

The spelling of 1375885747 in words is "one billion, three hundred seventy-five million, eight hundred eighty-five thousand, seven hundred forty-seven".