1375687625 has 16 divisors (see below), whose sum is σ = 1848926352. Its totient is φ = 1015891200.

The previous prime is 1375687613. The next prime is 1375687631. The reversal of 1375687625 is 5267865731.

It can be written as a sum of positive squares in 8 ways, for example, as 1087944256 + 287743369 = 32984^2 + 16963^2 .

It is not a de Polignac number, because 1375687625 - 2⁶ = 1375687561 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 421664 + ... + 424913.

It is an arithmetic number, because the mean of its divisors is an integer number (115557897).

Almost surely, 2^1375687625 is an apocalyptic number.

It is an amenable number.

1375687625 is a deficient number, since it is larger than the sum of its proper divisors (473238727).

1375687625 is an equidigital number, since it uses as much as digits as its factorization.

1375687625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846605 (or 846595 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 50.

The square root of 1375687625 is about 37090.2632101742. The cubic root of 1375687625 is about 1112.1753797643.

The spelling of 1375687625 in words is "one billion, three hundred seventy-five million, six hundred eighty-seven thousand, six hundred twenty-five".