1389316875 has 20 divisors (see below), whose sum is σ = 2314790280. Its totient is φ = 740968000.

The previous prime is 1389316871. The next prime is 1389316897. The reversal of 1389316875 is 5786139831.

It is not a de Polignac number, because 1389316875 - 2² = 1389316871 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1389316871) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 368610 + ... + 372359.

It is an arithmetic number, because the mean of its divisors is an integer number (115739514).

Almost surely, 2^1389316875 is an apocalyptic number.

1389316875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1389316875 is a deficient number, since it is larger than the sum of its proper divisors (925473405).

1389316875 is an frugal number, since it uses more digits than its factorization.

1389316875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740992 (or 740977 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 51.

The square root of 1389316875 is about 37273.5412189397. The cubic root of 1389316875 is about 1115.8361749026.

The spelling of 1389316875 in words is "one billion, three hundred eighty-nine million, three hundred sixteen thousand, eight hundred seventy-five".