1375932865 has 8 divisors (see below), whose sum is σ = 1657972008. Its totient is φ = 1096177920.

The previous prime is 1375932847. The next prime is 1375932881. The reversal of 1375932865 is 5682395731.

It can be written as a sum of positive squares in 4 ways, for example, as 697382464 + 678550401 = 26408^2 + 26049^2 .

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

It is not a de Polignac number, because 1375932865 - 2¹⁹ = 1375408577 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 569722 + ... + 572131.

It is an arithmetic number, because the mean of its divisors is an integer number (207246501).

Almost surely, 2^1375932865 is an apocalyptic number.

It is an amenable number.

1375932865 is a deficient number, since it is larger than the sum of its proper divisors (282039143).

1375932865 is a wasteful number, since it uses less digits than its factorization.

1375932865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142099.

The product of its digits is 1360800, while the sum is 49.

The square root of 1375932865 is about 37093.5690517912. The cubic root of 1375932865 is about 1112.2414639730.

The spelling of 1375932865 in words is "one billion, three hundred seventy-five million, nine hundred thirty-two thousand, eight hundred sixty-five".